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authorLaura Abbott <labbott@redhat.com>2018-03-09 16:10:19 -0800
committerLinus Walleij <linus.walleij@linaro.org>2018-03-27 15:18:06 +0200
commit48da181dac478bb517aae2483e69f3eeec24172c (patch)
tree935ac9200327d4405d4f9ab0723ab94a82c13dae /drivers/gpio
parenta8ff510dbc2a4f1e17b97e35f9607c47a1df89a9 (diff)
downloadlinux-48da181dac478bb517aae2483e69f3eeec24172c.tar.bz2
gpio: Remove VLA from MAX3191X driver
The new challenge is to remove VLAs from the kernel (see https://lkml.org/lkml/2018/3/7/621) This patch replaces several a VLA with an appropriate call to kmalloc_array. Signed-off-by: Laura Abbott <labbott@redhat.com> Reviewed-and-tested-by: Lukas Wunner <lukas@wunner.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/gpio-max3191x.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-max3191x.c b/drivers/gpio/gpio-max3191x.c
index f74b1072e84b..b5b9cb1fda50 100644
--- a/drivers/gpio/gpio-max3191x.c
+++ b/drivers/gpio/gpio-max3191x.c
@@ -315,12 +315,17 @@ static void gpiod_set_array_single_value_cansleep(unsigned int ndescs,
struct gpio_desc **desc,
int value)
{
- int i, values[ndescs];
+ int i, *values;
+
+ values = kmalloc_array(ndescs, sizeof(*values), GFP_KERNEL);
+ if (!values)
+ return;
for (i = 0; i < ndescs; i++)
values[i] = value;
gpiod_set_array_value_cansleep(ndescs, desc, values);
+ kfree(values);
}
static struct gpio_descs *devm_gpiod_get_array_optional_count(