Fix a division by 0 case : in some cases, when the HQVDP plane is being disabled atomic_check() is called with "mode->clock = 0". In that case, do not check for scaling capabilities.
Signed-off-by: Fabien Dessenne fabien.dessenne@st.com --- drivers/gpu/drm/sti/sti_hqvdp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/sti/sti_hqvdp.c b/drivers/gpu/drm/sti/sti_hqvdp.c index f88130f..723ac30 100644 --- a/drivers/gpu/drm/sti/sti_hqvdp.c +++ b/drivers/gpu/drm/sti/sti_hqvdp.c @@ -1035,9 +1035,9 @@ static int sti_hqvdp_atomic_check(struct drm_plane *drm_plane, src_w = state->src_w >> 16; src_h = state->src_h >> 16;
- if (!sti_hqvdp_check_hw_scaling(hqvdp, mode, - src_w, src_h, - dst_w, dst_h)) { + if (mode->clock && !sti_hqvdp_check_hw_scaling(hqvdp, mode, + src_w, src_h, + dst_w, dst_h)) { DRM_ERROR("Scaling beyond HW capabilities\n"); return -EINVAL; }