drm: fix error found in some cases after the patch d1af5cd86997

The patch d1af5cd86997 ("drm: get rid of DRM_DEBUG_* log
calls in drm core, files drm_a*.c") fails when the drm_device
cannot be found in the parameter plane_state->crtc.
Fix it using plane_state->plane.

Reported-by: kernel test robot <oliver.sang@intel.com>
Fixes: 6e22dc358377 ("drm: get rid of DRM_DEBUG_* log calls in drm core, files drm_a*.c")
Signed-off-by: Claudio Suarez <cssk@net-c.es>
[danvet: fix Fixes: line]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/YaiXEARd8z2C463h@gineta.localdomain
(cherry picked from commit 521d459b1935628a7caa0753429f880dae2dbfc9)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index 7944428..9603193 100644 (file)
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -828,8 +828,8 @@ int drm_atomic_helper_check_plane_state(struct drm_plane_state *plane_state,
        }
 
        if (!crtc_state->enable && !can_update_disabled) {
-               drm_dbg_kms(plane_state->crtc->dev,
-                              "Cannot update plane of a disabled CRTC.\n");
+               drm_dbg_kms(plane_state->plane->dev,
+                           "Cannot update plane of a disabled CRTC.\n");
                return -EINVAL;
        }
 
@@ -839,8 +839,8 @@ int drm_atomic_helper_check_plane_state(struct drm_plane_state *plane_state,
        hscale = drm_rect_calc_hscale(src, dst, min_scale, max_scale);
        vscale = drm_rect_calc_vscale(src, dst, min_scale, max_scale);
        if (hscale < 0 || vscale < 0) {
-               drm_dbg_kms(plane_state->crtc->dev,
-                              "Invalid scaling of plane\n");
+               drm_dbg_kms(plane_state->plane->dev,
+                           "Invalid scaling of plane\n");
                drm_rect_debug_print("src: ", &plane_state->src, true);
                drm_rect_debug_print("dst: ", &plane_state->dst, false);
                return -ERANGE;
@@ -864,8 +864,8 @@ int drm_atomic_helper_check_plane_state(struct drm_plane_state *plane_state,
                return 0;
 
        if (!can_position && !drm_rect_equals(dst, &clip)) {
-               drm_dbg_kms(plane_state->crtc->dev,
-                              "Plane must cover entire CRTC\n");
+               drm_dbg_kms(plane_state->plane->dev,
+                           "Plane must cover entire CRTC\n");
                drm_rect_debug_print("dst: ", dst, false);
                drm_rect_debug_print("clip: ", &clip, false);
                return -EINVAL;