Re: mtd: lpddr: Use struct_size() in kzalloc()

[Boris Brezillon <bbrezillon@xxxxxxxxxx>]

From: Boris Brezillon <boris.brezillon@xxxxxxxxxxx>

On Tue, 2019-01-08 at 21:09:46 UTC, "Gustavo A. R. Silva" wrote:
> 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 code was detected with the help of Coccinelle.
> 
> Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>

Applied to http://git.infradead.org/linux-mtd.git mtd/next, thanks.

Boris

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