Re: [PATCH] fbdev: pm3fb: Fix potential divide by zero

[Helge Deller <deller@gmx.de>]

On 6/7/25 21:49, Alex Guo wrote:
> variable var->pixclock can be set by user. In case it equals to
>   zero, divide by zero would occur in pm3fb_check_var. Similar
> crashes have happened in other fbdev drivers. There is no check
> and modification on var->pixclock along the call chain to
> pm3fb_check_var. So we fix this by checking whether 'pixclock'
> is zero.
> 
> Similar commit: commit 16844e58704 ("video: fbdev: tridentfb:
> Error out if 'pixclock' equals zero")
> 
> Signed-off-by: Alex Guo <alexguo1023@gmail.com>
> ---
>   drivers/video/fbdev/pm3fb.c | 3 +++
>   1 file changed, 3 insertions(+)

applied.

Thanks!
Helge