[PATCH 4/7] drm/atomic: log when CRTC_ID prop value is invalid

[Simon Ser]

Signed-off-by: Simon Ser <cont...@emersion.fr>
Cc: Daniel Vetter <daniel.vet...@ffwll.ch>
Cc: Jani Nikula <jani.nik...@intel.com>
---
 drivers/gpu/drm/drm_atomic_uapi.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_atomic_uapi.c 
b/drivers/gpu/drm/drm_atomic_uapi.c
index 39f3f491c148..5aa2ecd1af3d 100644
--- a/drivers/gpu/drm/drm_atomic_uapi.c
+++ b/drivers/gpu/drm/drm_atomic_uapi.c
@@ -539,8 +539,12 @@ static int drm_atomic_plane_set_property(struct drm_plane 
*plane,
        } else if (property == config->prop_crtc_id) {
                struct drm_crtc *crtc = drm_crtc_find(dev, file_priv, val);
 
-               if (val && !crtc)
+               if (val && !crtc) {
+                       drm_dbg_atomic(dev,
+                                      "[PROP:%d:%s] cannot find CRTC with ID 
%llu\n",
+                                      property->base.id, property->name, val);
                        return -EACCES;
+               }
                return drm_atomic_set_crtc_for_plane(state, crtc);
        } else if (property == config->prop_crtc_x) {
                state->crtc_x = U642I64(val);
@@ -695,8 +699,12 @@ static int drm_atomic_connector_set_property(struct 
drm_connector *connector,
        if (property == config->prop_crtc_id) {
                struct drm_crtc *crtc = drm_crtc_find(dev, file_priv, val);
 
-               if (val && !crtc)
+               if (val && !crtc) {
+                       drm_dbg_atomic(dev,
+                                      "[PROP:%d:%s] cannot find CRTC with ID 
%llu\n",
+                                      property->base.id, property->name, val);
                        return -EACCES;
+               }
                return drm_atomic_set_crtc_for_connector(state, crtc);
        } else if (property == config->dpms_property) {
                /* setting DPMS property requires special handling, which
-- 
2.38.0