diff options
| 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/pinctrl | |
| parent | treewide: Use struct_size() for vmalloc()-family (diff) | |
| download | linux-dev-0ed2dd03b94b7b7f66e23f25073b5385d0416589.tar.xz linux-dev-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/pinctrl')
| -rw-r--r-- | drivers/pinctrl/samsung/pinctrl-s3c64xx.c | 4 | ||||
| -rw-r--r-- | drivers/pinctrl/uniphier/pinctrl-uniphier-core.c | 3 |
2 files changed, 3 insertions, 4 deletions
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; |