Re: [PATCH] mtd: rawnand: marvell: use struct_size() in devm_kzalloc()

[Miquel Raynal <miquel.raynal@xxxxxxxxxxx>]

Hi Gustavo,

"Gustavo A. R. Silva" <gustavo@xxxxxxxxxxxxxx> wrote on Fri, 4 Jan 2019
12:20:51 -0600:

> 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@xxxxxxxxxxxxxx>
> ---

Applied to nand/next.


Thanks,
Miquèl

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