RE: [PATCH] clk: imx: imx7ulp: use struct_size() in kzalloc()
From: Aisheng Dong <aisheng.dong@nxp.com>
Date: 2018-12-24 09:03:14
Also in:
linux-clk, lkml
-----Original Message-----
From: Gustavo A. R. Silva [mailto:gustavo@embeddedor.com]
Sent: Monday, December 24, 2018 2:40 PM
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>Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Regards Dong Aisheng _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel