Re: [PATCH v2] drm/mxsfb: Disable overlay plane in mxsfb_plane_overlay_atomic_disable()

On 6/12/23 11:23, Liu Ying wrote:

When disabling overlay plane in mxsfb_plane_overlay_atomic_update(), overlay plane's framebuffer pointer is NULL. So, dereferencing it would cause a kernel Oops(NULL pointer dereferencing). Fix the issue by disabling overlay plane in mxsfb_plane_overlay_atomic_disable() instead.

Fixes: cb285a5348e7 ("drm: mxsfb: Replace mxsfb_get_fb_paddr() with drm_fb_cma_get_gem_addr()") Cc: stable@vger.kernel.org # 5.19+ Signed-off-by: Liu Ying victor.liu@nxp.com

Reviewed-by: Marek Vasut marex@denx.de