Hi,
On 1 December 2015 at 08:15, Dongsheng Wang dongsheng.wang@freescale.com wrote:
From: Jianwei Wang jianwei.wang.chn@gmail.com
For state->fb may be NULL in fsl_dcu_drm_plane_atomic_check function, if so, return -EINVAL. No need check in fsl_dcu_drm_plane_atomic_update anymore.
Signed-off-by: Jianwei Wang jianwei.wang.chn@gmail.com Signed-off-by: Yi Meng b56799@freescale.com Signed-off-by: Wang Dongsheng dongsheng.wang@freescale.com Tested-by: Stefan Agner stefan@agner.ch
diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c index 51daaea..a8932a8 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c @@ -41,6 +41,9 @@ static int fsl_dcu_drm_plane_atomic_check(struct drm_plane *plane, { struct drm_framebuffer *fb = state->fb;
if (!fb)return -EINVAL;
This should be return 0 instead, else you can never disable a plane ...
Cheers, Daniel