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

[Marek Vasut]

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 at vger.kernel.org # 5.19+
> Signed-off-by: Liu Ying <victor.liu at nxp.com>

Reviewed-by: Marek Vasut <marex at denx.de>