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| author | Gustavo A. R. Silva <gustavo@embeddedor.com> | 2019-01-05 00:35:08 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2019-01-11 15:24:21 +0300 |
| commit | 1e11820f72b71d276ae8fdc64fee7cdb49c05bc6 (patch) | |
| tree | f65a4f39531b4fc5ca8123d3a9e667d153f62768 /drivers/pinctrl/sirf | |
| parent | 16f4372fd7a5a560abe0edb4c68be1200599dc8a (diff) | |
| download | linux-1e11820f72b71d276ae8fdc64fee7cdb49c05bc6.tar.xz | |
pinctrl: sirf: atlas7: use struct_size() in devm_kzalloc()
One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:
struct foo {
int stuff;
void *entry[];
};
instance = devm_kzalloc(dev, sizeof(struct foo) + sizeof(void *) * count, GFP_KERNEL);
Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:
instance = devm_kzalloc(dev, struct_size(instance, entry, count), GFP_KERNEL);
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/sirf')
| -rw-r--r-- | drivers/pinctrl/sirf/pinctrl-atlas7.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pinctrl/sirf/pinctrl-atlas7.c b/drivers/pinctrl/sirf/pinctrl-atlas7.c index 4ba171827428..8a0eee044264 100644 --- a/drivers/pinctrl/sirf/pinctrl-atlas7.c +++ b/drivers/pinctrl/sirf/pinctrl-atlas7.c @@ -6007,8 +6007,8 @@ static int atlas7_gpio_probe(struct platform_device *pdev) } /* retrieve gpio descriptor data */ - a7gc = devm_kzalloc(&pdev->dev, sizeof(*a7gc) + - sizeof(struct atlas7_gpio_bank) * nbank, GFP_KERNEL); + a7gc = devm_kzalloc(&pdev->dev, struct_size(a7gc, banks, nbank), + GFP_KERNEL); if (!a7gc) return -ENOMEM; |