Re: [PATCH] clk: imx: imx7ulp: use struct_size() in kzalloc()
From: Stephen Boyd <sboyd@kernel.org>
Date: 2019-01-24 19:38:02
Also in:
linux-clk, lkml
Quoting Gustavo A. R. Silva (2018-12-23 22:40:25)
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 = kzalloc(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 = kzalloc(struct_size(instance, entry, count), GFP_KERNEL);
This issue was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <redacted>
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