[PATCH] fbdev: Check fb_add_videomode to prevent null-ptr-deref

[Helge Deller]

On 7/24/25 05:25, Chenyuan Yang wrote:
> fb_add_videomode() can fail with -ENOMEM when its internal kmalloc()
> cannot allocate a struct fb_modelist.
> If that happens, the modelist stays empty but the driver continues to
> register.
> Add a check for its return value to prevent poteintial null-ptr-deref,
> which is similar to the commit 17186f1f90d3
> ("fbdev: Fix do_register_framebuffer to prevent null-ptr-deref in fb_videomode_to_var").
> 
> Fixes: 1b6c79361ba5 ("video: imxfb: Add DT support")
> Signed-off-by: Chenyuan Yang <chenyuan0y at gmail.com>
> ---
>   drivers/video/fbdev/imxfb.c | 9 +++++++--
>   1 file changed, 7 insertions(+), 2 deletions(-)

applied.

Thanks!
Helge