Re: [PATCH] drivers/video/fbdev/core/fbmem.c: add pointer judgment

[Matthew Wilcox]

On Wed, May 19, 2021 at 08:00:28PM +0800, songqiang wrote:
> Signed-off-by: songqiang <songqiang@xxxxxxxxxxxxx>
> ---

You need to explain:

 - Why you think this patch is needed
   - Did you observe a problem at runtime?
   - Is this the output from some checking tool?
 - Why this is the right way to address the problem