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authorKees Cook <keescook@chromium.org>2018-05-08 16:08:53 -0700
committerKees Cook <keescook@chromium.org>2018-06-06 11:15:43 -0700
commit0ed2dd03b94b7b7f66e23f25073b5385d0416589 (patch)
tree5b46cbc179ffcdaf40715d53b8308f5a937b5c40 /drivers/soc/actions
parentb4b06db115bbbc10252287ae2d326fb5ecefaf18 (diff)
downloadlinux-0ed2dd03b94b7b7f66e23f25073b5385d0416589.tar.bz2
treewide: Use struct_size() for devm_kmalloc() and friends
Replaces open-coded struct size calculations with struct_size() for devm_*, f2fs_*, and sock_* allocations. Automatically generated (and manually adjusted) from the following Coccinelle script: // Direct reference to struct field. @@ identifier alloc =~ "devm_kmalloc|devm_kzalloc|sock_kmalloc|f2fs_kmalloc|f2fs_kzalloc"; expression HANDLE; expression GFP; identifier VAR, ELEMENT; expression COUNT; @@ - alloc(HANDLE, sizeof(*VAR) + COUNT * sizeof(*VAR->ELEMENT), GFP) + alloc(HANDLE, struct_size(VAR, ELEMENT, COUNT), GFP) // mr = kzalloc(sizeof(*mr) + m * sizeof(mr->map[0]), GFP_KERNEL); @@ identifier alloc =~ "devm_kmalloc|devm_kzalloc|sock_kmalloc|f2fs_kmalloc|f2fs_kzalloc"; expression HANDLE; expression GFP; identifier VAR, ELEMENT; expression COUNT; @@ - alloc(HANDLE, sizeof(*VAR) + COUNT * sizeof(VAR->ELEMENT[0]), GFP) + alloc(HANDLE, struct_size(VAR, ELEMENT, COUNT), GFP) // Same pattern, but can't trivially locate the trailing element name, // or variable name. @@ identifier alloc =~ "devm_kmalloc|devm_kzalloc|sock_kmalloc|f2fs_kmalloc|f2fs_kzalloc"; expression HANDLE; expression GFP; expression SOMETHING, COUNT, ELEMENT; @@ - alloc(HANDLE, sizeof(SOMETHING) + COUNT * sizeof(ELEMENT), GFP) + alloc(HANDLE, CHECKME_struct_size(&SOMETHING, ELEMENT, COUNT), GFP) Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'drivers/soc/actions')
-rw-r--r--drivers/soc/actions/owl-sps.c4
1 files changed, 2 insertions, 2 deletions
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;