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author | Kees Cook <keescook@chromium.org> | 2018-05-08 16:08:53 -0700 |
---|---|---|
committer | Kees Cook <keescook@chromium.org> | 2018-06-06 11:15:43 -0700 |
commit | 0ed2dd03b94b7b7f66e23f25073b5385d0416589 (patch) | |
tree | 5b46cbc179ffcdaf40715d53b8308f5a937b5c40 /drivers/misc/cb710/core.c | |
parent | b4b06db115bbbc10252287ae2d326fb5ecefaf18 (diff) | |
download | linux-stable-0ed2dd03b94b7b7f66e23f25073b5385d0416589.tar.gz linux-stable-0ed2dd03b94b7b7f66e23f25073b5385d0416589.tar.bz2 linux-stable-0ed2dd03b94b7b7f66e23f25073b5385d0416589.zip |
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/misc/cb710/core.c')
-rw-r--r-- | drivers/misc/cb710/core.c | 4 |
1 files changed, 2 insertions, 2 deletions
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; |