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authorLinus Torvalds <torvalds@linux-foundation.org>2018-06-06 17:27:14 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-06-06 17:27:14 -0700
commit285767604576148fc1be7fcd112e4a90eb0d6ad2 (patch)
treeb4c611689f95e1a2ba0fe7b6407e05469251fc2f /drivers
parent5eb6eed7e0fe880dc8de8da203cc888716bbf196 (diff)
parent0ed2dd03b94b7b7f66e23f25073b5385d0416589 (diff)
downloadlinux-285767604576148fc1be7fcd112e4a90eb0d6ad2.tar.bz2
Merge tag 'overflow-v4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull overflow updates from Kees Cook: "This adds the new overflow checking helpers and adds them to the 2-factor argument allocators. And this adds the saturating size helpers and does a treewide replacement for the struct_size() usage. Additionally this adds the overflow testing modules to make sure everything works. I'm still working on the treewide replacements for allocators with "simple" multiplied arguments: *alloc(a * b, ...) -> *alloc_array(a, b, ...) and *zalloc(a * b, ...) -> *calloc(a, b, ...) as well as the more complex cases, but that's separable from this portion of the series. I expect to have the rest sent before -rc1 closes; there are a lot of messy cases to clean up. Summary: - Introduce arithmetic overflow test helper functions (Rasmus) - Use overflow helpers in 2-factor allocators (Kees, Rasmus) - Introduce overflow test module (Rasmus, Kees) - Introduce saturating size helper functions (Matthew, Kees) - Treewide use of struct_size() for allocators (Kees)" * tag 'overflow-v4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: treewide: Use struct_size() for devm_kmalloc() and friends treewide: Use struct_size() for vmalloc()-family treewide: Use struct_size() for kmalloc()-family device: Use overflow helpers for devm_kmalloc() mm: Use overflow helpers in kvmalloc() mm: Use overflow helpers in kmalloc_array*() test_overflow: Add memory allocation overflow tests overflow.h: Add allocation size calculation helpers test_overflow: Report test failures test_overflow: macrofy some more, do more tests for free lib: add runtime test of check_*_overflow functions compiler.h: enable builtin overflow checkers and add fallback code
Diffstat (limited to 'drivers')
-rw-r--r--drivers/base/devres.c7
-rw-r--r--drivers/clk/bcm/clk-bcm2835-aux.c6
-rw-r--r--drivers/clk/bcm/clk-bcm2835.c4
-rw-r--r--drivers/clk/bcm/clk-iproc-asiu.c4
-rw-r--r--drivers/clk/bcm/clk-iproc-pll.c3
-rw-r--r--drivers/clk/berlin/bg2.c3
-rw-r--r--drivers/clk/berlin/bg2q.c3
-rw-r--r--drivers/clk/clk-asm9260.c3
-rw-r--r--drivers/clk/clk-aspeed.c6
-rw-r--r--drivers/clk/clk-clps711x.c6
-rw-r--r--drivers/clk/clk-efm32gg.c4
-rw-r--r--drivers/clk/clk-gemini.c6
-rw-r--r--drivers/clk/clk-s2mps11.c4
-rw-r--r--drivers/clk/clk-scmi.c4
-rw-r--r--drivers/clk/clk-stm32h7.c5
-rw-r--r--drivers/clk/clk-stm32mp1.c5
-rw-r--r--drivers/clk/davinci/da8xx-cfgchip.c4
-rw-r--r--drivers/clk/mvebu/armada-37xx-periph.c7
-rw-r--r--drivers/clk/mvebu/armada-37xx-tbg.c4
-rw-r--r--drivers/clk/qcom/clk-spmi-pmic-div.c3
-rw-r--r--drivers/clk/samsung/clk-exynos-audss.c4
-rw-r--r--drivers/clk/samsung/clk-exynos-clkout.c3
-rw-r--r--drivers/clk/samsung/clk-exynos5433.c4
-rw-r--r--drivers/clk/samsung/clk-s3c2410-dclk.c7
-rw-r--r--drivers/clk/samsung/clk-s5pv210-audss.c3
-rw-r--r--drivers/dax/device.c2
-rw-r--r--drivers/dma/bcm-sba-raid.c5
-rw-r--r--drivers/dma/edma.c9
-rw-r--r--drivers/dma/moxart-dma.c2
-rw-r--r--drivers/dma/nbpfaxi.c4
-rw-r--r--drivers/dma/omap-dma.c2
-rw-r--r--drivers/dma/sa11x0-dma.c4
-rw-r--r--drivers/dma/sh/usb-dmac.c2
-rw-r--r--drivers/dma/sprd-dma.c4
-rw-r--r--drivers/firewire/core-topology.c3
-rw-r--r--drivers/gpio/gpio-uniphier.c3
-rw-r--r--drivers/gpio/gpiolib.c3
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/core/ramht.c3
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/engine/pm/base.c4
-rw-r--r--drivers/hwspinlock/omap_hwspinlock.c2
-rw-r--r--drivers/hwspinlock/sirf_hwspinlock.c6
-rw-r--r--drivers/hwspinlock/u8500_hsem.c2
-rw-r--r--drivers/infiniband/core/cache.c5
-rw-r--r--drivers/infiniband/core/cm.c4
-rw-r--r--drivers/infiniband/core/multicast.c2
-rw-r--r--drivers/infiniband/core/uverbs_cmd.c4
-rw-r--r--drivers/infiniband/core/uverbs_ioctl_merge.c21
-rw-r--r--drivers/infiniband/hw/mthca/mthca_memfree.c4
-rw-r--r--drivers/infiniband/sw/rdmavt/mr.c4
-rw-r--r--drivers/input/input-leds.c3
-rw-r--r--drivers/input/input-mt.c2
-rw-r--r--drivers/input/keyboard/cap11xx.c3
-rw-r--r--drivers/md/dm-raid.c2
-rw-r--r--drivers/md/dm-table.c10
-rw-r--r--drivers/mfd/qcom-pm8xxx.c4
-rw-r--r--drivers/misc/cb710/core.c4
-rw-r--r--drivers/misc/vexpress-syscfg.c3
-rw-r--r--drivers/mtd/spi-nor/aspeed-smc.c5
-rw-r--r--drivers/net/can/peak_canfd/peak_pciefd_main.c3
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/debugfs.c2
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/fs_core.c3
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c5
-rw-r--r--drivers/net/wireless/mediatek/mt76/agg-rx.c3
-rw-r--r--drivers/pinctrl/samsung/pinctrl-s3c64xx.c4
-rw-r--r--drivers/pinctrl/uniphier/pinctrl-uniphier-core.c3
-rw-r--r--drivers/regulator/mc13783-regulator.c6
-rw-r--r--drivers/regulator/mc13892-regulator.c6
-rw-r--r--drivers/reset/core.c3
-rw-r--r--drivers/rtc/rtc-ac100.c8
-rw-r--r--drivers/s390/cio/ccwgroup.c3
-rw-r--r--drivers/soc/actions/owl-sps.c4
-rw-r--r--drivers/soc/rockchip/pm_domains.c3
-rw-r--r--drivers/staging/greybus/module.c4
-rw-r--r--drivers/thermal/qcom/tsens.c6
-rw-r--r--drivers/usb/gadget/function/f_midi.c5
-rw-r--r--drivers/zorro/zorro.c3
76 files changed, 154 insertions, 172 deletions
diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index 95b67281cd2a..f98a097e73f2 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -84,9 +84,14 @@ static struct devres_group * node_to_group(struct devres_node *node)
static __always_inline struct devres * alloc_dr(dr_release_t release,
size_t size, gfp_t gfp, int nid)
{
- size_t tot_size = sizeof(struct devres) + size;
+ size_t tot_size;
struct devres *dr;
+ /* We must catch any near-SIZE_MAX cases that could overflow. */
+ if (unlikely(check_add_overflow(sizeof(struct devres), size,
+ &tot_size)))
+ return NULL;
+
dr = kmalloc_node_track_caller(tot_size, gfp, nid);
if (unlikely(!dr))
return NULL;
diff --git a/drivers/clk/bcm/clk-bcm2835-aux.c b/drivers/clk/bcm/clk-bcm2835-aux.c
index 77e276d61702..f225ad29b110 100644
--- a/drivers/clk/bcm/clk-bcm2835-aux.c
+++ b/drivers/clk/bcm/clk-bcm2835-aux.c
@@ -40,8 +40,10 @@ static int bcm2835_aux_clk_probe(struct platform_device *pdev)
if (IS_ERR(reg))
return PTR_ERR(reg);
- onecell = devm_kmalloc(dev, sizeof(*onecell) + sizeof(*onecell->hws) *
- BCM2835_AUX_CLOCK_COUNT, GFP_KERNEL);
+ onecell = devm_kmalloc(dev,
+ struct_size(onecell, hws,
+ BCM2835_AUX_CLOCK_COUNT),
+ GFP_KERNEL);
if (!onecell)
return -ENOMEM;
onecell->num = BCM2835_AUX_CLOCK_COUNT;
diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
index fa0d5c8611a0..6d4e69edfb36 100644
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -2147,8 +2147,8 @@ static int bcm2835_clk_probe(struct platform_device *pdev)
size_t i;
int ret;
- cprman = devm_kzalloc(dev, sizeof(*cprman) +
- sizeof(*cprman->onecell.hws) * asize,
+ cprman = devm_kzalloc(dev,
+ struct_size(cprman, onecell.hws, asize),
GFP_KERNEL);
if (!cprman)
return -ENOMEM;
diff --git a/drivers/clk/bcm/clk-iproc-asiu.c b/drivers/clk/bcm/clk-iproc-asiu.c
index 4360e481368b..6fb8af506777 100644
--- a/drivers/clk/bcm/clk-iproc-asiu.c
+++ b/drivers/clk/bcm/clk-iproc-asiu.c
@@ -197,8 +197,8 @@ void __init iproc_asiu_setup(struct device_node *node,
if (WARN_ON(!asiu))
return;
- asiu->clk_data = kzalloc(sizeof(*asiu->clk_data->hws) * num_clks +
- sizeof(*asiu->clk_data), GFP_KERNEL);
+ asiu->clk_data = kzalloc(struct_size(asiu->clk_data, hws, num_clks),
+ GFP_KERNEL);
if (WARN_ON(!asiu->clk_data))
goto err_clks;
asiu->clk_data->num = num_clks;
diff --git a/drivers/clk/bcm/clk-iproc-pll.c b/drivers/clk/bcm/clk-iproc-pll.c
index 43a58ae5a89d..274441e2ddb2 100644
--- a/drivers/clk/bcm/clk-iproc-pll.c
+++ b/drivers/clk/bcm/clk-iproc-pll.c
@@ -744,8 +744,7 @@ void iproc_pll_clk_setup(struct device_node *node,
if (WARN_ON(!pll))
return;
- clk_data = kzalloc(sizeof(*clk_data->hws) * num_clks +
- sizeof(*clk_data), GFP_KERNEL);
+ clk_data = kzalloc(struct_size(clk_data, hws, num_clks), GFP_KERNEL);
if (WARN_ON(!clk_data))
goto err_clk_data;
clk_data->num = num_clks;
diff --git a/drivers/clk/berlin/bg2.c b/drivers/clk/berlin/bg2.c
index e7331ace0337..45fb888bf0a0 100644
--- a/drivers/clk/berlin/bg2.c
+++ b/drivers/clk/berlin/bg2.c
@@ -509,8 +509,7 @@ static void __init berlin2_clock_setup(struct device_node *np)
u8 avpll_flags = 0;
int n, ret;
- clk_data = kzalloc(sizeof(*clk_data) +
- sizeof(*clk_data->hws) * MAX_CLKS, GFP_KERNEL);
+ clk_data = kzalloc(struct_size(clk_data, hws, MAX_CLKS), GFP_KERNEL);
if (!clk_data)
return;
clk_data->num = MAX_CLKS;
diff --git a/drivers/clk/berlin/bg2q.c b/drivers/clk/berlin/bg2q.c
index 67c270b143f7..db7364e15c8b 100644
--- a/drivers/clk/berlin/bg2q.c
+++ b/drivers/clk/berlin/bg2q.c
@@ -295,8 +295,7 @@ static void __init berlin2q_clock_setup(struct device_node *np)
struct clk_hw **hws;
int n, ret;
- clk_data = kzalloc(sizeof(*clk_data) +
- sizeof(*clk_data->hws) * MAX_CLKS, GFP_KERNEL);
+ clk_data = kzalloc(struct_size(clk_data, hws, MAX_CLKS), GFP_KERNEL);
if (!clk_data)
return;
clk_data->num = MAX_CLKS;
diff --git a/drivers/clk/clk-asm9260.c b/drivers/clk/clk-asm9260.c
index bf0582cbbf38..44b544157121 100644
--- a/drivers/clk/clk-asm9260.c
+++ b/drivers/clk/clk-asm9260.c
@@ -273,8 +273,7 @@ static void __init asm9260_acc_init(struct device_node *np)
int n;
u32 accuracy = 0;
- clk_data = kzalloc(sizeof(*clk_data) +
- sizeof(*clk_data->hws) * MAX_CLKS, GFP_KERNEL);
+ clk_data = kzalloc(struct_size(clk_data, hws, MAX_CLKS), GFP_KERNEL);
if (!clk_data)
return;
clk_data->num = MAX_CLKS;
diff --git a/drivers/clk/clk-aspeed.c b/drivers/clk/clk-aspeed.c
index 5eb50c31e455..7abe4232d282 100644
--- a/drivers/clk/clk-aspeed.c
+++ b/drivers/clk/clk-aspeed.c
@@ -627,9 +627,9 @@ static void __init aspeed_cc_init(struct device_node *np)
if (!scu_base)
return;
- aspeed_clk_data = kzalloc(sizeof(*aspeed_clk_data) +
- sizeof(*aspeed_clk_data->hws) * ASPEED_NUM_CLKS,
- GFP_KERNEL);
+ aspeed_clk_data = kzalloc(struct_size(aspeed_clk_data, hws,
+ ASPEED_NUM_CLKS),
+ GFP_KERNEL);
if (!aspeed_clk_data)
return;
diff --git a/drivers/clk/clk-clps711x.c b/drivers/clk/clk-clps711x.c
index 9193f64561f6..2c04396402ab 100644
--- a/drivers/clk/clk-clps711x.c
+++ b/drivers/clk/clk-clps711x.c
@@ -54,9 +54,9 @@ static struct clps711x_clk * __init _clps711x_clk_init(void __iomem *base,
if (!base)
return ERR_PTR(-ENOMEM);
- clps711x_clk = kzalloc(sizeof(*clps711x_clk) +
- sizeof(*clps711x_clk->clk_data.hws) * CLPS711X_CLK_MAX,
- GFP_KERNEL);
+ clps711x_clk = kzalloc(struct_size(clps711x_clk, clk_data.hws,
+ CLPS711X_CLK_MAX),
+ GFP_KERNEL);
if (!clps711x_clk)
return ERR_PTR(-ENOMEM);
diff --git a/drivers/clk/clk-efm32gg.c b/drivers/clk/clk-efm32gg.c
index f674778fb3ac..f37cf08ff7aa 100644
--- a/drivers/clk/clk-efm32gg.c
+++ b/drivers/clk/clk-efm32gg.c
@@ -25,8 +25,8 @@ static void __init efm32gg_cmu_init(struct device_node *np)
void __iomem *base;
struct clk_hw **hws;
- clk_data = kzalloc(sizeof(*clk_data) +
- sizeof(*clk_data->hws) * CMU_MAX_CLKS, GFP_KERNEL);
+ clk_data = kzalloc(struct_size(clk_data, hws, CMU_MAX_CLKS),
+ GFP_KERNEL);
if (!clk_data)
return;
diff --git a/drivers/clk/clk-gemini.c b/drivers/clk/clk-gemini.c
index 5e66e6c0205e..b51069e794ff 100644
--- a/drivers/clk/clk-gemini.c
+++ b/drivers/clk/clk-gemini.c
@@ -399,9 +399,9 @@ static void __init gemini_cc_init(struct device_node *np)
int ret;
int i;
- gemini_clk_data = kzalloc(sizeof(*gemini_clk_data) +
- sizeof(*gemini_clk_data->hws) * GEMINI_NUM_CLKS,
- GFP_KERNEL);
+ gemini_clk_data = kzalloc(struct_size(gemini_clk_data, hws,
+ GEMINI_NUM_CLKS),
+ GFP_KERNEL);
if (!gemini_clk_data)
return;
diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c
index fbaa84a33c46..d44e0eea31ec 100644
--- a/drivers/clk/clk-s2mps11.c
+++ b/drivers/clk/clk-s2mps11.c
@@ -147,8 +147,8 @@ static int s2mps11_clk_probe(struct platform_device *pdev)
if (!s2mps11_clks)
return -ENOMEM;
- clk_data = devm_kzalloc(&pdev->dev, sizeof(*clk_data) +
- sizeof(*clk_data->hws) * S2MPS11_CLKS_NUM,
+ clk_data = devm_kzalloc(&pdev->dev,
+ struct_size(clk_data, hws, S2MPS11_CLKS_NUM),
GFP_KERNEL);
if (!clk_data)
return -ENOMEM;
diff --git a/drivers/clk/clk-scmi.c b/drivers/clk/clk-scmi.c
index 488c21376b55..bb2a6f2f5516 100644
--- a/drivers/clk/clk-scmi.c
+++ b/drivers/clk/clk-scmi.c
@@ -137,8 +137,8 @@ static int scmi_clocks_probe(struct scmi_device *sdev)
return -EINVAL;
}
- clk_data = devm_kzalloc(dev, sizeof(*clk_data) +
- sizeof(*clk_data->hws) * count, GFP_KERNEL);
+ clk_data = devm_kzalloc(dev, struct_size(clk_data, hws, count),
+ GFP_KERNEL);
if (!clk_data)
return -ENOMEM;
diff --git a/drivers/clk/clk-stm32h7.c b/drivers/clk/clk-stm32h7.c
index db2b162c0d4c..d3271eca3779 100644
--- a/drivers/clk/clk-stm32h7.c
+++ b/drivers/clk/clk-stm32h7.c
@@ -1201,9 +1201,8 @@ static void __init stm32h7_rcc_init(struct device_node *np)
const char *hse_clk, *lse_clk, *i2s_clk;
struct regmap *pdrm;
- clk_data = kzalloc(sizeof(*clk_data) +
- sizeof(*clk_data->hws) * STM32H7_MAX_CLKS,
- GFP_KERNEL);
+ clk_data = kzalloc(struct_size(clk_data, hws, STM32H7_MAX_CLKS),
+ GFP_KERNEL);
if (!clk_data)
return;
diff --git a/drivers/clk/clk-stm32mp1.c b/drivers/clk/clk-stm32mp1.c
index edd3cf451401..83e8cd81674f 100644
--- a/drivers/clk/clk-stm32mp1.c
+++ b/drivers/clk/clk-stm32mp1.c
@@ -2060,9 +2060,8 @@ static int stm32_rcc_init(struct device_node *np,
max_binding = data->maxbinding;
- clk_data = kzalloc(sizeof(*clk_data) +
- sizeof(*clk_data->hws) * max_binding,
- GFP_KERNEL);
+ clk_data = kzalloc(struct_size(clk_data, hws, max_binding),
+ GFP_KERNEL);
if (!clk_data)
return -ENOMEM;
diff --git a/drivers/clk/davinci/da8xx-cfgchip.c b/drivers/clk/davinci/da8xx-cfgchip.c
index c971111d2601..aae62a5b8734 100644
--- a/drivers/clk/davinci/da8xx-cfgchip.c
+++ b/drivers/clk/davinci/da8xx-cfgchip.c
@@ -650,8 +650,8 @@ static int of_da8xx_usb_phy_clk_init(struct device *dev, struct regmap *regmap)
struct da8xx_usb0_clk48 *usb0;
struct da8xx_usb1_clk48 *usb1;
- clk_data = devm_kzalloc(dev, sizeof(*clk_data) + 2 *
- sizeof(*clk_data->hws), GFP_KERNEL);
+ clk_data = devm_kzalloc(dev, struct_size(clk_data, hws, 2),
+ GFP_KERNEL);
if (!clk_data)
return -ENOMEM;
diff --git a/drivers/clk/mvebu/armada-37xx-periph.c b/drivers/clk/mvebu/armada-37xx-periph.c
index 87213ea7fc84..6860bd5a37c5 100644
--- a/drivers/clk/mvebu/armada-37xx-periph.c
+++ b/drivers/clk/mvebu/armada-37xx-periph.c
@@ -667,9 +667,10 @@ static int armada_3700_periph_clock_probe(struct platform_device *pdev)
if (!driver_data)
return -ENOMEM;
- driver_data->hw_data = devm_kzalloc(dev, sizeof(*driver_data->hw_data) +
- sizeof(*driver_data->hw_data->hws) * num_periph,
- GFP_KERNEL);
+ driver_data->hw_data = devm_kzalloc(dev,
+ struct_size(driver_data->hw_data,
+ hws, num_periph),
+ GFP_KERNEL);
if (!driver_data->hw_data)
return -ENOMEM;
driver_data->hw_data->num = num_periph;
diff --git a/drivers/clk/mvebu/armada-37xx-tbg.c b/drivers/clk/mvebu/armada-37xx-tbg.c
index aa80db11f543..7ff041f73b55 100644
--- a/drivers/clk/mvebu/armada-37xx-tbg.c
+++ b/drivers/clk/mvebu/armada-37xx-tbg.c
@@ -91,8 +91,8 @@ static int armada_3700_tbg_clock_probe(struct platform_device *pdev)
void __iomem *reg;
int i, ret;
- hw_tbg_data = devm_kzalloc(&pdev->dev, sizeof(*hw_tbg_data)
- + sizeof(*hw_tbg_data->hws) * NUM_TBG,
+ hw_tbg_data = devm_kzalloc(&pdev->dev,
+ struct_size(hw_tbg_data, hws, NUM_TBG),
GFP_KERNEL);
if (!hw_tbg_data)
return -ENOMEM;
diff --git a/drivers/clk/qcom/clk-spmi-pmic-div.c b/drivers/clk/qcom/clk-spmi-pmic-div.c
index 8672ab84746f..c90dfdd6c147 100644
--- a/drivers/clk/qcom/clk-spmi-pmic-div.c
+++ b/drivers/clk/qcom/clk-spmi-pmic-div.c
@@ -239,8 +239,7 @@ static int spmi_pmic_clkdiv_probe(struct platform_device *pdev)
if (!nclks)
return -EINVAL;
- cc = devm_kzalloc(dev, sizeof(*cc) + sizeof(*cc->clks) * nclks,
- GFP_KERNEL);
+ cc = devm_kzalloc(dev, struct_size(cc, clks, nclks), GFP_KERNEL);
if (!cc)
return -ENOMEM;
cc->nclks = nclks;
diff --git a/drivers/clk/samsung/clk-exynos-audss.c b/drivers/clk/samsung/clk-exynos-audss.c
index b4b057c7301c..f659c5cbf1d5 100644
--- a/drivers/clk/samsung/clk-exynos-audss.c
+++ b/drivers/clk/samsung/clk-exynos-audss.c
@@ -149,8 +149,8 @@ static int exynos_audss_clk_probe(struct platform_device *pdev)
epll = ERR_PTR(-ENODEV);
clk_data = devm_kzalloc(dev,
- sizeof(*clk_data) +
- sizeof(*clk_data->hws) * EXYNOS_AUDSS_MAX_CLKS,
+ struct_size(clk_data, hws,
+ EXYNOS_AUDSS_MAX_CLKS),
GFP_KERNEL);
if (!clk_data)
return -ENOMEM;
diff --git a/drivers/clk/samsung/clk-exynos-clkout.c b/drivers/clk/samsung/clk-exynos-clkout.c
index f29fb5824005..9c95390d2d77 100644
--- a/drivers/clk/samsung/clk-exynos-clkout.c
+++ b/drivers/clk/samsung/clk-exynos-clkout.c
@@ -61,8 +61,7 @@ static void __init exynos_clkout_init(struct device_node *node, u32 mux_mask)
int ret;
int i;
- clkout = kzalloc(sizeof(*clkout) +
- sizeof(*clkout->data.hws) * EXYNOS_CLKOUT_NR_CLKS,
+ clkout = kzalloc(struct_size(clkout, data.hws, EXYNOS_CLKOUT_NR_CLKS),
GFP_KERNEL);
if (!clkout)
return;
diff --git a/drivers/clk/samsung/clk-exynos5433.c b/drivers/clk/samsung/clk-exynos5433.c
index 5305ace514b2..162de44df099 100644
--- a/drivers/clk/samsung/clk-exynos5433.c
+++ b/drivers/clk/samsung/clk-exynos5433.c
@@ -5505,8 +5505,8 @@ static int __init exynos5433_cmu_probe(struct platform_device *pdev)
info = of_device_get_match_data(dev);
- data = devm_kzalloc(dev, sizeof(*data) +
- sizeof(*data->ctx.clk_data.hws) * info->nr_clk_ids,
+ data = devm_kzalloc(dev,
+ struct_size(data, ctx.clk_data.hws, info->nr_clk_ids),
GFP_KERNEL);
if (!data)
return -ENOMEM;
diff --git a/drivers/clk/samsung/clk-s3c2410-dclk.c b/drivers/clk/samsung/clk-s3c2410-dclk.c
index 077df3e539a7..66a904758761 100644
--- a/drivers/clk/samsung/clk-s3c2410-dclk.c
+++ b/drivers/clk/samsung/clk-s3c2410-dclk.c
@@ -247,9 +247,10 @@ static int s3c24xx_dclk_probe(struct platform_device *pdev)
struct clk_hw **clk_table;
int ret, i;
- s3c24xx_dclk = devm_kzalloc(&pdev->dev, sizeof(*s3c24xx_dclk) +
- sizeof(*s3c24xx_dclk->clk_data.hws) * DCLK_MAX_CLKS,
- GFP_KERNEL);
+ s3c24xx_dclk = devm_kzalloc(&pdev->dev,
+ struct_size(s3c24xx_dclk, clk_data.hws,
+ DCLK_MAX_CLKS),
+ GFP_KERNEL);
if (!s3c24xx_dclk)
return -ENOMEM;
diff --git a/drivers/clk/samsung/clk-s5pv210-audss.c b/drivers/clk/samsung/clk-s5pv210-audss.c
index b9641414ddc6..22b18e728b88 100644
--- a/drivers/clk/samsung/clk-s5pv210-audss.c
+++ b/drivers/clk/samsung/clk-s5pv210-audss.c
@@ -81,8 +81,7 @@ static int s5pv210_audss_clk_probe(struct platform_device *pdev)
}
clk_data = devm_kzalloc(&pdev->dev,
- sizeof(*clk_data) +
- sizeof(*clk_data->hws) * AUDSS_MAX_CLKS,
+ struct_size(clk_data, hws, AUDSS_MAX_CLKS),
GFP_KERNEL);
if (!clk_data)
diff --git a/drivers/dax/device.c b/drivers/dax/device.c
index aff2c1594220..de2f8297a210 100644
--- a/drivers/dax/device.c
+++ b/drivers/dax/device.c
@@ -594,7 +594,7 @@ struct dev_dax *devm_create_dev_dax(struct dax_region *dax_region,
if (!count)
return ERR_PTR(-EINVAL);
- dev_dax = kzalloc(sizeof(*dev_dax) + sizeof(*res) * count, GFP_KERNEL);
+ dev_dax = kzalloc(struct_size(dev_dax, res, count), GFP_KERNEL);
if (!dev_dax)
return ERR_PTR(-ENOMEM);
diff --git a/drivers/dma/bcm-sba-raid.c b/drivers/dma/bcm-sba-raid.c
index 3956a018bf5a..72878ac5c78d 100644
--- a/drivers/dma/bcm-sba-raid.c
+++ b/drivers/dma/bcm-sba-raid.c
@@ -1499,9 +1499,8 @@ static int sba_prealloc_channel_resources(struct sba_device *sba)
for (i = 0; i < sba->max_req; i++) {
req = devm_kzalloc(sba->dev,
- sizeof(*req) +
- sba->max_cmd_per_req * sizeof(req->cmds[0]),
- GFP_KERNEL);
+ struct_size(req, cmds, sba->max_cmd_per_req),
+ GFP_KERNEL);
if (!req) {
ret = -ENOMEM;
goto fail_free_cmds_pool;
diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index 85ea92fcea54..9bc722ca8329 100644
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -1074,8 +1074,7 @@ static struct dma_async_tx_descriptor *edma_prep_slave_sg(
return NULL;
}
- edesc = kzalloc(sizeof(*edesc) + sg_len * sizeof(edesc->pset[0]),
- GFP_ATOMIC);
+ edesc = kzalloc(struct_size(edesc, pset, sg_len), GFP_ATOMIC);
if (!edesc)
return NULL;
@@ -1192,8 +1191,7 @@ static struct dma_async_tx_descriptor *edma_prep_dma_memcpy(
nslots = 2;
}
- edesc = kzalloc(sizeof(*edesc) + nslots * sizeof(edesc->pset[0]),
- GFP_ATOMIC);
+ edesc = kzalloc(struct_size(edesc, pset, nslots), GFP_ATOMIC);
if (!edesc)
return NULL;
@@ -1315,8 +1313,7 @@ static struct dma_async_tx_descriptor *edma_prep_dma_cyclic(
}
}
- edesc = kzalloc(sizeof(*edesc) + nslots * sizeof(edesc->pset[0]),
- GFP_ATOMIC);
+ edesc = kzalloc(struct_size(edesc, pset, nslots), GFP_ATOMIC);
if (!edesc)
return NULL;
diff --git a/drivers/dma/moxart-dma.c b/drivers/dma/moxart-dma.c
index e1a5c2242f6f..e04499c1f27f 100644
--- a/drivers/dma/moxart-dma.c
+++ b/drivers/dma/moxart-dma.c
@@ -309,7 +309,7 @@ static struct dma_async_tx_descriptor *moxart_prep_slave_sg(
return NULL;
}
- d = kzalloc(sizeof(*d) + sg_len * sizeof(d->sg[0]), GFP_ATOMIC);
+ d = kzalloc(struct_size(d, sg, sg_len), GFP_ATOMIC);
if (!d)
return NULL;
diff --git a/drivers/dma/nbpfaxi.c b/drivers/dma/nbpfaxi.c
index 50559338239b..2f9974ddfbb2 100644
--- a/drivers/dma/nbpfaxi.c
+++ b/drivers/dma/nbpfaxi.c
@@ -1305,8 +1305,8 @@ static int nbpf_probe(struct platform_device *pdev)
cfg = of_device_get_match_data(dev);
num_channels = cfg->num_channels;
- nbpf = devm_kzalloc(dev, sizeof(*nbpf) + num_channels *
- sizeof(nbpf->chan[0]), GFP_KERNEL);
+ nbpf = devm_kzalloc(dev, struct_size(nbpf, chan, num_channels),
+ GFP_KERNEL);
if (!nbpf)
return -ENOMEM;
diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c
index d21c19822feb..9483000fcf79 100644
--- a/drivers/dma/omap-dma.c
+++ b/drivers/dma/omap-dma.c
@@ -917,7 +917,7 @@ static struct dma_async_tx_descriptor *omap_dma_prep_slave_sg(
}
/* Now allocate and setup the descriptor. */
- d = kzalloc(sizeof(*d) + sglen * sizeof(d->sg[0]), GFP_ATOMIC);
+ d = kzalloc(struct_size(d, sg, sglen), GFP_ATOMIC);
if (!d)
return NULL;
diff --git a/drivers/dma/sa11x0-dma.c b/drivers/dma/sa11x0-dma.c
index c7a89c22890e..b31d07c7d93c 100644
--- a/drivers/dma/sa11x0-dma.c
+++ b/drivers/dma/sa11x0-dma.c
@@ -557,7 +557,7 @@ static struct dma_async_tx_descriptor *sa11x0_dma_prep_slave_sg(
}
}
- txd = kzalloc(sizeof(*txd) + j * sizeof(txd->sg[0]), GFP_ATOMIC);
+ txd = kzalloc(struct_size(txd, sg, j), GFP_ATOMIC);
if (!txd) {
dev_dbg(chan->device->dev, "vchan %p: kzalloc failed\n", &c->vc);
return NULL;
@@ -627,7 +627,7 @@ static struct dma_async_tx_descriptor *sa11x0_dma_prep_dma_cyclic(
if (sglen == 0)
return NULL;
- txd = kzalloc(sizeof(*txd) + sglen * sizeof(txd->sg[0]), GFP_ATOMIC);
+ txd = kzalloc(struct_size(txd, sg, sglen), GFP_ATOMIC);
if (!txd) {
dev_dbg(chan->device->dev, "vchan %p: kzalloc failed\n", &c->vc);
return NULL;
diff --git a/drivers/dma/sh/usb-dmac.c b/drivers/dma/sh/usb-dmac.c
index 31a145154e9f..1bb1a8e09025 100644
--- a/drivers/dma/sh/usb-dmac.c
+++ b/drivers/dma/sh/usb-dmac.c
@@ -269,7 +269,7 @@ static int usb_dmac_desc_alloc(struct usb_dmac_chan *chan, unsigned int sg_len,
struct usb_dmac_desc *desc;
unsigned long flags;
- desc = kzalloc(sizeof(*desc) + sg_len * sizeof(desc->sg[0]), gfp);
+ desc = kzalloc(struct_size(desc, sg, sg_len), gfp);
if (!desc)
return -ENOMEM;
diff --git a/drivers/dma/sprd-dma.c b/drivers/dma/sprd-dma.c
index b106e8a60af6..52ebccb483be 100644
--- a/drivers/dma/sprd-dma.c
+++ b/drivers/dma/sprd-dma.c
@@ -805,8 +805,8 @@ static int sprd_dma_probe(struct platform_device *pdev)
return ret;
}
- sdev = devm_kzalloc(&pdev->dev, sizeof(*sdev) +
- sizeof(*dma_chn) * chn_count,
+ sdev = devm_kzalloc(&pdev->dev,
+ struct_size(sdev, channels, chn_count),
GFP_KERNEL);
if (!sdev)
return -ENOMEM;
diff --git a/drivers/firewire/core-topology.c b/drivers/firewire/core-topology.c
index 939d259ddf19..7db234d3fbdd 100644
--- a/drivers/firewire/core-topology.c
+++ b/drivers/firewire/core-topology.c
@@ -112,8 +112,7 @@ static struct fw_node *fw_node_create(u32 sid, int port_count, int color)
{
struct fw_node *node;
- node = kzalloc(sizeof(*node) + port_count * sizeof(node->ports[0]),
- GFP_ATOMIC);
+ node = kzalloc(struct_size(node, ports, port_count), GFP_ATOMIC);
if (node == NULL)
return NULL;
diff --git a/drivers/gpio/gpio-uniphier.c b/drivers/gpio/gpio-uniphier.c
index 761d8279abca..d3cf9502e7e7 100644
--- a/drivers/gpio/gpio-uniphier.c
+++ b/drivers/gpio/gpio-uniphier.c
@@ -371,8 +371,7 @@ static int uniphier_gpio_probe(struct platform_device *pdev)
return ret;
nregs = uniphier_gpio_get_nbanks(ngpios) * 2 + 3;
- priv = devm_kzalloc(dev,
- sizeof(*priv) + sizeof(priv->saved_vals[0]) * nregs,
+ priv = devm_kzalloc(dev, struct_size(priv, saved_vals, nregs),
GFP_KERNEL);
if (!priv)
return -ENOMEM;
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index d8ccb500872f..55d596f3035e 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -4023,8 +4023,7 @@ struct gpio_descs *__must_check gpiod_get_array(struct device *dev,
if (count < 0)
return ERR_PTR(count);
- descs = kzalloc(sizeof(*descs) + sizeof(descs->desc[0]) * count,
- GFP_KERNEL);
+ descs = kzalloc(struct_size(descs, desc, count), GFP_KERNEL);
if (!descs)
return ERR_PTR(-ENOMEM);
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/ramht.c b/drivers/gpu/drm/nouveau/nvkm/core/ramht.c
index ccba4ae73cc5..8162e3d2359c 100644
--- a/drivers/gpu/drm/nouveau/nvkm/core/ramht.c
+++ b/drivers/gpu/drm/nouveau/nvkm/core/ramht.c
@@ -144,8 +144,7 @@ nvkm_ramht_new(struct nvkm_device *device, u32 size, u32 align,
struct nvkm_ramht *ramht;
int ret, i;
- if (!(ramht = *pramht = vzalloc(sizeof(*ramht) +
- (size >> 3) * sizeof(*ramht->data))))
+ if (!(ramht = *pramht = vzalloc(struct_size(ramht, data, (size >> 3)))))
return -ENOMEM;
ramht->device = device;
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/pm/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/pm/base.c
index 53859b6254d6..b2785bee418e 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/pm/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/pm/base.c
@@ -779,8 +779,8 @@ nvkm_perfdom_new(struct nvkm_pm *pm, const char *name, u32 mask,
sdom = spec;
while (sdom->signal_nr) {
- dom = kzalloc(sizeof(*dom) + sdom->signal_nr *
- sizeof(*dom->signal), GFP_KERNEL);
+ dom = kzalloc(struct_size(dom, signal, sdom->signal_nr),
+ GFP_KERNEL);
if (!dom)
return -ENOMEM;
diff --git a/drivers/hwspinlock/omap_hwspinlock.c b/drivers/hwspinlock/omap_hwspinlock.c
index ad2f8cac8487..d897e5251c36 100644
--- a/drivers/hwspinlock/omap_hwspinlock.c
+++ b/drivers/hwspinlock/omap_hwspinlock.c
@@ -132,7 +132,7 @@ static int omap_hwspinlock_probe(struct platform_device *pdev)
num_locks = i * 32; /* actual number of locks in this device */
- bank = kzalloc(sizeof(*bank) + num_locks * sizeof(*hwlock), GFP_KERNEL);
+ bank = kzalloc(struct_size(bank, lock, num_locks), GFP_KERNEL);
if (!bank) {
ret = -ENOMEM;
goto iounmap_base;
diff --git a/drivers/hwspinlock/sirf_hwspinlock.c b/drivers/hwspinlock/sirf_hwspinlock.c
index 16018544d431..cb38e487c6c4 100644
--- a/drivers/hwspinlock/sirf_hwspinlock.c
+++ b/drivers/hwspinlock/sirf_hwspinlock.c
@@ -62,8 +62,10 @@ static int sirf_hwspinlock_probe(struct platform_device *pdev)
if (!pdev->dev.of_node)
return -ENODEV;
- hwspin = devm_kzalloc(&pdev->dev, sizeof(*hwspin) +
- sizeof(*hwlock) * HW_SPINLOCK_NUMBER, GFP_KERNEL);
+ hwspin = devm_kzalloc(&pdev->dev,
+ struct_size(hwspin, bank.lock,
+ HW_SPINLOCK_NUMBER),
+ GFP_KERNEL);
if (!hwspin)
return -ENOMEM;
diff --git a/drivers/hwspinlock/u8500_hsem.c b/drivers/hwspinlock/u8500_hsem.c
index e93eabbd660f..0128d8fb905e 100644
--- a/drivers/hwspinlock/u8500_hsem.c
+++ b/drivers/hwspinlock/u8500_hsem.c
@@ -119,7 +119,7 @@ static int u8500_hsem_probe(struct platform_device *pdev)
/* clear all interrupts */
writel(0xFFFF, io_base + HSEM_ICRALL);
- bank = kzalloc(sizeof(*bank) + num_locks * sizeof(*hwlock), GFP_KERNEL);
+ bank = kzalloc(struct_size(bank, lock, num_locks), GFP_KERNEL);
if (!bank) {
ret = -ENOMEM;
goto iounmap_base;
diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c
index ecc55e98ddd3..3330d97faa1e 100644
--- a/drivers/infiniband/core/cache.c
+++ b/drivers/infiniband/core/cache.c
@@ -1157,8 +1157,9 @@ static void ib_cache_update(struct ib_device *device,
goto err;
}
- pkey_cache = kmalloc(sizeof *pkey_cache + tprops->pkey_tbl_len *
- sizeof *pkey_cache->table, GFP_KERNEL);
+ pkey_cache = kmalloc(struct_size(pkey_cache, table,
+ tprops->pkey_tbl_len),
+ GFP_KERNEL);
if (!pkey_cache)
goto err;
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index a92e1a5c202b..36a4d90a7b47 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -4298,8 +4298,8 @@ static void cm_add_one(struct ib_device *ib_device)
int count = 0;
u8 i;
- cm_dev = kzalloc(sizeof(*cm_dev) + sizeof(*port) *
- ib_device->phys_port_cnt, GFP_KERNEL);
+ cm_dev = kzalloc(struct_size(cm_dev, port, ib_device->phys_port_cnt),
+ GFP_KERNEL);
if (!cm_dev)
return;
diff --git a/drivers/infiniband/core/multicast.c b/drivers/infiniband/core/multicast.c
index 4eb72ff539fc..6c48f4193dda 100644
--- a/drivers/infiniband/core/multicast.c
+++ b/drivers/infiniband/core/multicast.c
@@ -813,7 +813,7 @@ static void mcast_add_one(struct ib_device *device)
int i;
int count = 0;
- dev = kmalloc(sizeof *dev + device->phys_port_cnt * sizeof *port,
+ dev = kmalloc(struct_size(dev, port, device->phys_port_cnt),
GFP_KERNEL);
if (!dev)
return;
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 21a887c9523b..e3662a8ee465 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -2756,8 +2756,8 @@ static struct ib_uflow_resources *flow_resources_alloc(size_t num_specs)
struct ib_uflow_resources *resources;
resources =
- kmalloc(sizeof(*resources) +
- num_specs * sizeof(*resources->collection), GFP_KERNEL);
+ kmalloc(struct_size(resources, collection, num_specs),
+ GFP_KERNEL);
if (!resources)
return NULL;
diff --git a/drivers/infiniband/core/uverbs_ioctl_merge.c b/drivers/infiniband/core/uverbs_ioctl_merge.c
index 0f88a1919d51..6ceb672c4d46 100644
--- a/drivers/infiniband/core/uverbs_ioctl_merge.c
+++ b/drivers/infiniband/core/uverbs_ioctl_merge.c
@@ -297,8 +297,7 @@ static struct uverbs_method_spec *build_method_with_attrs(const struct uverbs_me
if (max_attr_buckets >= 0)
num_attr_buckets = max_attr_buckets + 1;
- method = kzalloc(sizeof(*method) +
- num_attr_buckets * sizeof(*method->attr_buckets),
+ method = kzalloc(struct_size(method, attr_buckets, num_attr_buckets),
GFP_KERNEL);
if (!method)
return ERR_PTR(-ENOMEM);
@@ -446,9 +445,9 @@ static struct uverbs_object_spec *build_object_with_methods(const struct uverbs_
if (max_method_buckets >= 0)
num_method_buckets = max_method_buckets + 1;
- object = kzalloc(sizeof(*object) +
- num_method_buckets *
- sizeof(*object->method_buckets), GFP_KERNEL);
+ object = kzalloc(struct_size(object, method_buckets,
+ num_method_buckets),
+ GFP_KERNEL);
if (!object)
return ERR_PTR(-ENOMEM);
@@ -469,8 +468,8 @@ static struct uverbs_object_spec *build_object_with_methods(const struct uverbs_
if (methods_max_bucket < 0)
continue;
- hash = kzalloc(sizeof(*hash) +
- sizeof(*hash->methods) * (methods_max_bucket + 1),
+ hash = kzalloc(struct_size(hash, methods,
+ methods_max_bucket + 1),
GFP_KERNEL);
if (!hash) {
res = -ENOMEM;
@@ -579,8 +578,8 @@ struct uverbs_root_spec *uverbs_alloc_spec_tree(unsigned int num_trees,
if (max_object_buckets >= 0)
num_objects_buckets = max_object_buckets + 1;
- root_spec = kzalloc(sizeof(*root_spec) +
- num_objects_buckets * sizeof(*root_spec->object_buckets),
+ root_spec = kzalloc(struct_size(root_spec, object_buckets,
+ num_objects_buckets),
GFP_KERNEL);
if (!root_spec)
return ERR_PTR(-ENOMEM);
@@ -603,8 +602,8 @@ struct uverbs_root_spec *uverbs_alloc_spec_tree(unsigned int num_trees,
if (objects_max_bucket < 0)
continue;
- hash = kzalloc(sizeof(*hash) +
- sizeof(*hash->objects) * (objects_max_bucket + 1),
+ hash = kzalloc(struct_size(hash, objects,
+ objects_max_bucket + 1),
GFP_KERNEL);
if (!hash) {
res = -ENOMEM;
diff --git a/drivers/infiniband/hw/mthca/mthca_memfree.c b/drivers/infiniband/hw/mthca/mthca_memfree.c
index 2fe503e86c1d..7a31be3c3e73 100644
--- a/drivers/infiniband/hw/mthca/mthca_memfree.c
+++ b/drivers/infiniband/hw/mthca/mthca_memfree.c
@@ -367,7 +367,7 @@ struct mthca_icm_table *mthca_alloc_icm_table(struct mthca_dev *dev,
obj_per_chunk = MTHCA_TABLE_CHUNK_SIZE / obj_size;
num_icm = DIV_ROUND_UP(nobj, obj_per_chunk);
- table = kmalloc(sizeof *table + num_icm * sizeof *table->icm, GFP_KERNEL);
+ table = kmalloc(struct_size(table, icm, num_icm), GFP_KERNEL);
if (!table)
return NULL;
@@ -529,7 +529,7 @@ struct mthca_user_db_table *mthca_init_user_db_tab(struct mthca_dev *dev)
return NULL;
npages = dev->uar_table.uarc_size / MTHCA_ICM_PAGE_SIZE;
- db_tab = kmalloc(sizeof *db_tab + npages * sizeof *db_tab->page, GFP_KERNEL);
+ db_tab = kmalloc(struct_size(db_tab, page, npages), GFP_KERNEL);
if (!db_tab)
return ERR_PTR(-ENOMEM);
diff --git a/drivers/infiniband/sw/rdmavt/mr.c b/drivers/infiniband/sw/rdmavt/mr.c
index cc429b567d0a..49c9541050d4 100644
--- a/drivers/infiniband/sw/rdmavt/mr.c
+++ b/drivers/infiniband/sw/rdmavt/mr.c
@@ -283,7 +283,7 @@ static struct rvt_mr *__rvt_alloc_mr(int count, struct ib_pd *pd)
/* Allocate struct plus pointers to first level page tables. */
m = (count + RVT_SEGSZ - 1) / RVT_SEGSZ;
- mr = kzalloc(sizeof(*mr) + m * sizeof(mr->mr.map[0]), GFP_KERNEL);
+ mr = kzalloc(struct_size(mr, mr.map, m), GFP_KERNEL);
if (!mr)
goto bail;
@@ -730,7 +730,7 @@ struct ib_fmr *rvt_alloc_fmr(struct ib_pd *pd, int mr_access_flags,
/* Allocate struct plus pointers to first level page tables. */
m = (fmr_attr->max_pages + RVT_SEGSZ - 1) / RVT_SEGSZ;
- fmr = kzalloc(sizeof(*fmr) + m * sizeof(fmr->mr.map[0]), GFP_KERNEL);
+ fmr = kzalloc(struct_size(fmr, mr.map, m), GFP_KERNEL);
if (!fmr)
goto bail;
diff --git a/drivers/input/input-leds.c b/drivers/input/input-leds.c
index 5f04b2d94635..99cc784e1264 100644
--- a/drivers/input/input-leds.c
+++ b/drivers/input/input-leds.c
@@ -98,8 +98,7 @@ static int input_leds_connect(struct input_handler *handler,
if (!num_leds)
return -ENXIO;
- leds = kzalloc(sizeof(*leds) + num_leds * sizeof(*leds->leds),
- GFP_KERNEL);
+ leds = kzalloc(struct_size(leds, leds, num_leds), GFP_KERNEL);
if (!leds)
return -ENOMEM;
diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c
index a1bbec9cda8d..cf30523c6ef6 100644
--- a/drivers/input/input-mt.c
+++ b/drivers/input/input-mt.c
@@ -49,7 +49,7 @@ int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots,
if (mt)
return mt->num_slots != num_slots ? -EINVAL : 0;
- mt = kzalloc(sizeof(*mt) + num_slots * sizeof(*mt->slots), GFP_KERNEL);
+ mt = kzalloc(struct_size(mt, slots, num_slots), GFP_KERNEL);
if (!mt)
goto err_mem;
diff --git a/drivers/input/keyboard/cap11xx.c b/drivers/input/keyboard/cap11xx.c
index 1a1eacae3ea1..312916f99597 100644
--- a/drivers/input/keyboard/cap11xx.c
+++ b/drivers/input/keyboard/cap11xx.c
@@ -357,8 +357,7 @@ static int cap11xx_i2c_probe(struct i2c_client *i2c_client,
}
priv = devm_kzalloc(dev,
- sizeof(*priv) +
- cap->num_channels * sizeof(priv->keycodes[0]),
+ struct_size(priv, keycodes, cap->num_channels),
GFP_KERNEL);
if (!priv)
return -ENOMEM;
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index 6f823f44b4aa..ab13fcec3fca 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -756,7 +756,7 @@ static struct raid_set *raid_set_alloc(struct dm_target *ti, struct raid_type *r
return ERR_PTR(-EINVAL);
}
- rs = kzalloc(sizeof(*rs) + raid_devs * sizeof(rs->dev[0]), GFP_KERNEL);
+ rs = kzalloc(struct_size(rs, dev, raid_devs), GFP_KERNEL);
if (!rs) {
ti->error = "Cannot allocate raid context";
return ERR_PTR(-ENOMEM);
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 0589a4da12bb..caa51dd351b6 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -548,14 +548,14 @@ static int adjoin(struct dm_table *table, struct dm_target *ti)
* On the other hand, dm-switch needs to process bulk data using messages and
* excessive use of GFP_NOIO could cause trouble.
*/
-static char **realloc_argv(unsigned *array_size, char **old_argv)
+static char **realloc_argv(unsigned *size, char **old_argv)
{
char **argv;
unsigned new_size;
gfp_t gfp;
- if (*array_size) {
- new_size = *array_size * 2;
+ if (*size) {
+ new_size = *size * 2;
gfp = GFP_KERNEL;
} else {
new_size = 8;
@@ -563,8 +563,8 @@ static char **realloc_argv(unsigned *array_size, char **old_argv)
}
argv = kmalloc(new_size * sizeof(*argv), gfp);
if (argv) {
- memcpy(argv, old_argv, *array_size * sizeof(*argv));
- *array_size = new_size;
+ memcpy(argv, old_argv, *size * sizeof(*argv));
+ *size = new_size;
}
kfree(old_argv);
diff --git a/drivers/mfd/qcom-pm8xxx.c b/drivers/mfd/qcom-pm8xxx.c
index f08758f6b418..e6e8d81c15fd 100644
--- a/drivers/mfd/qcom-pm8xxx.c
+++ b/drivers/mfd/qcom-pm8xxx.c
@@ -563,8 +563,8 @@ static int pm8xxx_probe(struct platform_device *pdev)
pr_info("PMIC revision 2: %02X\n", val);
rev |= val << BITS_PER_BYTE;
- chip = devm_kzalloc(&pdev->dev, sizeof(*chip) +
- sizeof(chip->config[0]) * data->num_irqs,
+ chip = devm_kzalloc(&pdev->dev,
+ struct_size(chip, config, data->num_irqs),
GFP_KERNEL);
if (!chip)
return -ENOMEM;
diff --git a/drivers/misc/cb710/core.c b/drivers/misc/cb710/core.c
index fb397e7d1cce..4d4acf763b65 100644
--- a/drivers/misc/cb710/core.c
+++ b/drivers/misc/cb710/core.c
@@ -232,8 +232,8 @@ static int cb710_probe(struct pci_dev *pdev,
if (val & CB710_SLOT_SM)
++n;
- chip = devm_kzalloc(&pdev->dev,
- sizeof(*chip) + n * sizeof(*chip->slot), GFP_KERNEL);
+ chip = devm_kzalloc(&pdev->dev, struct_size(chip, slot, n),
+ GFP_KERNEL);
if (!chip)
return -ENOMEM;
diff --git a/drivers/misc/vexpress-syscfg.c b/drivers/misc/vexpress-syscfg.c
index 9eea30f54fd6..80a6f199077c 100644
--- a/drivers/misc/vexpress-syscfg.c
+++ b/drivers/misc/vexpress-syscfg.c
@@ -182,8 +182,7 @@ static struct regmap *vexpress_syscfg_regmap_init(struct device *dev,
val = energy_quirk;
}
- func = kzalloc(sizeof(*func) + sizeof(*func->template) * num,
- GFP_KERNEL);
+ func = kzalloc(struct_size(func, template, num), GFP_KERNEL);
if (!func)
return ERR_PTR(-ENOMEM);
diff --git a/drivers/mtd/spi-nor/aspeed-smc.c b/drivers/mtd/spi-nor/aspeed-smc.c
index 8d3cbe27efb6..95e54468cf7d 100644
--- a/drivers/mtd/spi-nor/aspeed-smc.c
+++ b/drivers/mtd/spi-nor/aspeed-smc.c
@@ -861,8 +861,9 @@ static int aspeed_smc_probe(struct platform_device *pdev)
return -ENODEV;
info = match->data;
- controller = devm_kzalloc(&pdev->dev, sizeof(*controller) +
- info->nce * sizeof(controller->chips[0]), GFP_KERNEL);
+ controller = devm_kzalloc(&pdev->dev,
+ struct_size(controller, chips, info->nce),
+ GFP_KERNEL);
if (!controller)
return -ENOMEM;
controller->info = info;
diff --git a/drivers/net/can/peak_canfd/peak_pciefd_main.c b/drivers/net/can/peak_canfd/peak_pciefd_main.c
index 3c51a884db87..b9e28578bc7b 100644
--- a/drivers/net/can/peak_canfd/peak_pciefd_main.c
+++ b/drivers/net/can/peak_canfd/peak_pciefd_main.c
@@ -752,8 +752,7 @@ static int peak_pciefd_probe(struct pci_dev *pdev,
can_count = 1;
/* allocate board structure object */
- pciefd = devm_kzalloc(&pdev->dev, sizeof(*pciefd) +
- can_count * sizeof(*pciefd->can),
+ pciefd = devm_kzalloc(&pdev->dev, struct_size(pciefd, can, can_count),
GFP_KERNEL);
if (!pciefd) {
err = -ENOMEM;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c
index 7ecadb501743..413080a312a7 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c
@@ -494,7 +494,7 @@ static int add_res_tree(struct mlx5_core_dev *dev, enum dbg_rsc_type type,
int err;
int i;
- d = kzalloc(sizeof(*d) + nfile * sizeof(d->fields[0]), GFP_KERNEL);
+ d = kzalloc(struct_size(d, fields, nfile), GFP_KERNEL);
if (!d)
return -ENOMEM;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
index c39c1692e674..56e275199256 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -1191,8 +1191,7 @@ static struct mlx5_flow_handle *alloc_handle(int num_rules)
{
struct mlx5_flow_handle *handle;
- handle = kzalloc(sizeof(*handle) + sizeof(handle->rule[0]) *
- num_rules, GFP_KERNEL);
+ handle = kzalloc(struct_size(handle, rule, num_rules), GFP_KERNEL);
if (!handle)
return NULL;
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 90f8c89ea59c..9b2e1cb58e38 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -2987,9 +2987,8 @@ static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
mvmsta = iwl_mvm_sta_from_mac80211(sta);
WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
- ptk_pn = kzalloc(sizeof(*ptk_pn) +
- mvm->trans->num_rx_queues *
- sizeof(ptk_pn->q[0]),
+ ptk_pn = kzalloc(struct_size(ptk_pn, q,
+ mvm->trans->num_rx_queues),
GFP_KERNEL);
if (!ptk_pn) {
ret = -ENOMEM;
diff --git a/drivers/net/wireless/mediatek/mt76/agg-rx.c b/drivers/net/wireless/mediatek/mt76/agg-rx.c
index fcb208d1f276..89c7d8c7eb48 100644
--- a/drivers/net/wireless/mediatek/mt76/agg-rx.c
+++ b/drivers/net/wireless/mediatek/mt76/agg-rx.c
@@ -236,8 +236,7 @@ int mt76_rx_aggr_start(struct mt76_dev *dev, struct mt76_wcid *wcid, u8 tidno,
mt76_rx_aggr_stop(dev, wcid, tidno);
- tid = kzalloc(sizeof(*tid) + size * sizeof(tid->reorder_buf[0]),
- GFP_KERNEL);
+ tid = kzalloc(struct_size(tid, reorder_buf, size), GFP_KERNEL);
if (!tid)
return -ENOMEM;
diff --git a/drivers/pinctrl/samsung/pinctrl-s3c64xx.c b/drivers/pinctrl/samsung/pinctrl-s3c64xx.c
index 288e6567ceb1..c399f0932af5 100644
--- a/drivers/pinctrl/samsung/pinctrl-s3c64xx.c
+++ b/drivers/pinctrl/samsung/pinctrl-s3c64xx.c
@@ -483,8 +483,8 @@ static int s3c64xx_eint_gpio_init(struct samsung_pinctrl_drv_data *d)
++nr_domains;
}
- data = devm_kzalloc(dev, sizeof(*data)
- + nr_domains * sizeof(*data->domains), GFP_KERNEL);
+ data = devm_kzalloc(dev, struct_size(data, domains, nr_domains),
+ GFP_KERNEL);
if (!data)
return -ENOMEM;
data->drvdata = d;
diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c b/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c
index ec0f77afeaa4..add8e870667b 100644
--- a/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c
+++ b/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c
@@ -759,8 +759,7 @@ static int uniphier_pinctrl_add_reg_region(struct device *dev,
nregs = DIV_ROUND_UP(count * width, 32);
- region = devm_kzalloc(dev,
- sizeof(*region) + sizeof(region->vals[0]) * nregs,
+ region = devm_kzalloc(dev, struct_size(region, vals, nregs),
GFP_KERNEL);
if (!region)
return -ENOMEM;
diff --git a/drivers/regulator/mc13783-regulator.c b/drivers/regulator/mc13783-regulator.c
index fe4c7d677f9c..0e0277bd91a8 100644
--- a/drivers/regulator/mc13783-regulator.c
+++ b/drivers/regulator/mc13783-regulator.c
@@ -409,9 +409,9 @@ static int mc13783_regulator_probe(struct platform_device *pdev)
if (num_regulators <= 0)
return -EINVAL;
- priv = devm_kzalloc(&pdev->dev, sizeof(*priv) +
- num_regulators * sizeof(priv->regulators[0]),
- GFP_KERNEL);
+ priv = devm_kzalloc(&pdev->dev,
+ struct_size(priv, regulators, num_regulators),
+ GFP_KERNEL);
if (!priv)
return -ENOMEM;
diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c
index 0d17c9206816..15dd7bc7b529 100644
--- a/drivers/regulator/mc13892-regulator.c
+++ b/drivers/regulator/mc13892-regulator.c
@@ -547,9 +547,9 @@ static int mc13892_regulator_probe(struct platform_device *pdev)
if (num_regulators <= 0)
return -EINVAL;
- priv = devm_kzalloc(&pdev->dev, sizeof(*priv) +
- num_regulators * sizeof(priv->regulators[0]),
- GFP_KERNEL);
+ priv = devm_kzalloc(&pdev->dev,
+ struct_size(priv, regulators, num_regulators),
+ GFP_KERNEL);
if (!priv)
return -ENOMEM;
diff --git a/drivers/reset/core.c b/drivers/reset/core.c
index 6488292e129c..225e34c56b94 100644
--- a/drivers/reset/core.c
+++ b/drivers/reset/core.c
@@ -730,8 +730,7 @@ of_reset_control_array_get(struct device_node *np, bool shared, bool optional)
if (num < 0)
return optional ? NULL : ERR_PTR(num);
- resets = kzalloc(sizeof(*resets) + sizeof(resets->rstc[0]) * num,
- GFP_KERNEL);
+ resets = kzalloc(struct_size(resets, rstc, num), GFP_KERNEL);
if (!resets)
return ERR_PTR(-ENOMEM);
diff --git a/drivers/rtc/rtc-ac100.c b/drivers/rtc/rtc-ac100.c
index 3fe576fdd45e..784b676284bf 100644
--- a/drivers/rtc/rtc-ac100.c
+++ b/drivers/rtc/rtc-ac100.c
@@ -317,10 +317,10 @@ static int ac100_rtc_register_clks(struct ac100_rtc_dev *chip)
const char *parents[2] = {AC100_RTC_32K_NAME};
int i, ret;
- chip->clk_data = devm_kzalloc(chip->dev, sizeof(*chip->clk_data) +
- sizeof(*chip->clk_data->hws) *
- AC100_CLKOUT_NUM,
- GFP_KERNEL);
+ chip->clk_data = devm_kzalloc(chip->dev,
+ struct_size(chip->clk_data, hws,
+ AC100_CLKOUT_NUM),
+ GFP_KERNEL);
if (!chip->clk_data)
return -ENOMEM;
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index db9c854088bc..93b2862bd3fa 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -326,8 +326,7 @@ int ccwgroup_create_dev(struct device *parent, struct ccwgroup_driver *gdrv,
if (num_devices < 1)
return -EINVAL;
- gdev = kzalloc(sizeof(*gdev) + num_devices * sizeof(gdev->cdev[0]),
- GFP_KERNEL);
+ gdev = kzalloc(struct_size(gdev, cdev, num_devices), GFP_KERNEL);
if (!gdev)
return -ENOMEM;
diff --git a/drivers/soc/actions/owl-sps.c b/drivers/soc/actions/owl-sps.c
index 8477f0f18e24..032921d8d41f 100644
--- a/drivers/soc/actions/owl-sps.c
+++ b/drivers/soc/actions/owl-sps.c
@@ -117,8 +117,8 @@ static int owl_sps_probe(struct platform_device *pdev)
sps_info = match->data;
- sps = devm_kzalloc(&pdev->dev, sizeof(*sps) +
- sps_info->num_domains * sizeof(sps->domains[0]),
+ sps = devm_kzalloc(&pdev->dev,
+ struct_size(sps, domains, sps_info->num_domains),
GFP_KERNEL);
if (!sps)
return -ENOMEM;
diff --git a/drivers/soc/rockchip/pm_domains.c b/drivers/soc/rockchip/pm_domains.c
index 53efc386b1ad..111c44fc1c12 100644
--- a/drivers/soc/rockchip/pm_domains.c
+++ b/drivers/soc/rockchip/pm_domains.c
@@ -626,8 +626,7 @@ static int rockchip_pm_domain_probe(struct platform_device *pdev)
pmu_info = match->data;
pmu = devm_kzalloc(dev,
- sizeof(*pmu) +
- pmu_info->num_domains * sizeof(pmu->domains[0]),
+ struct_size(pmu, domains, pmu_info->num_domains),
GFP_KERNEL);
if (!pmu)
return -ENOMEM;
diff --git a/drivers/staging/greybus/module.c b/drivers/staging/greybus/module.c
index b785382192de..894d02e8d8b7 100644
--- a/drivers/staging/greybus/module.c
+++ b/drivers/staging/greybus/module.c
@@ -94,8 +94,8 @@ struct gb_module *gb_module_create(struct gb_host_device *hd, u8 module_id,
struct gb_module *module;
int i;
- module = kzalloc(sizeof(*module) + num_interfaces * sizeof(intf),
- GFP_KERNEL);
+ module = kzalloc(struct_size(module, interfaces, num_interfaces),
+ GFP_KERNEL);
if (!module)
return NULL;
diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c
index 3f9fe6aa51cc..c2c34425279d 100644
--- a/drivers/thermal/qcom/tsens.c
+++ b/drivers/thermal/qcom/tsens.c
@@ -112,7 +112,6 @@ static int tsens_probe(struct platform_device *pdev)
int ret, i;
struct device *dev;
struct device_node *np;
- struct tsens_sensor *s;
struct tsens_device *tmdev;
const struct tsens_data *data;
const struct of_device_id *id;
@@ -135,8 +134,9 @@ static int tsens_probe(struct platform_device *pdev)
return -EINVAL;
}
- tmdev = devm_kzalloc(dev, sizeof(*tmdev) +
- data->num_sensors * sizeof(*s), GFP_KERNEL);
+ tmdev = devm_kzalloc(dev,
+ struct_size(tmdev, sensor, data->num_sensors),
+ GFP_KERNEL);
if (!tmdev)
return -ENOMEM;
diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c
index f80699747ee0..46af0aa07e2e 100644
--- a/drivers/usb/gadget/function/f_midi.c
+++ b/drivers/usb/gadget/function/f_midi.c
@@ -1301,9 +1301,8 @@ static struct usb_function *f_midi_alloc(struct usb_function_instance *fi)
}
/* allocate and initialize one new instance */
- midi = kzalloc(
- sizeof(*midi) + opts->in_ports * sizeof(*midi->in_ports_array),
- GFP_KERNEL);
+ midi = kzalloc(struct_size(midi, in_ports_array, opts->in_ports),
+ GFP_KERNEL);
if (!midi) {
status = -ENOMEM;
goto setup_fail;
diff --git a/drivers/zorro/zorro.c b/drivers/zorro/zorro.c
index 67fa900572a9..8eeb84c239db 100644
--- a/drivers/zorro/zorro.c
+++ b/drivers/zorro/zorro.c
@@ -138,8 +138,7 @@ static int __init amiga_zorro_probe(struct platform_device *pdev)
int error;
/* Initialize the Zorro bus */
- bus = kzalloc(sizeof(*bus) +
- zorro_num_autocon * sizeof(bus->devices[0]),
+ bus = kzalloc(struct_size(bus, devices, zorro_num_autocon),
GFP_KERNEL);
if (!bus)
return -ENOMEM;