RE: [PATCH] clk: imx: imx7ulp: use struct_size() in kzalloc()

[Aisheng Dong]

> -----Original Message-----
> From: Gustavo A. R. Silva [mailto:gustavo@xxxxxxxxxxxxxx]
> 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 <gustavo@xxxxxxxxxxxxxx>

Reviewed-by: Dong Aisheng <aisheng.dong@xxxxxxx>

Regards
Dong Aisheng