diff options
Diffstat (limited to 'drivers/gpu/drm/drm_atomic.c')
| -rw-r--r-- | drivers/gpu/drm/drm_atomic.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 0ae280aaa124..0fb25bfe381d 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -392,10 +392,24 @@ int drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state, memset(&state->mode, 0, sizeof(state->mode)); if (blob) { - if (blob->length != sizeof(struct drm_mode_modeinfo) || - drm_mode_convert_umode(state->crtc->dev, &state->mode, - blob->data)) + int ret; + + if (blob->length != sizeof(struct drm_mode_modeinfo)) { + DRM_DEBUG_ATOMIC("[CRTC:%d:%s] bad mode blob length: %zu\n", + crtc->base.id, crtc->name, + blob->length); + return -EINVAL; + } + + ret = drm_mode_convert_umode(crtc->dev, + &state->mode, blob->data); + if (ret) { + DRM_DEBUG_ATOMIC("[CRTC:%d:%s] invalid mode (ret=%d, status=%s):\n", + crtc->base.id, crtc->name, + ret, drm_get_mode_status_name(state->mode.status)); + drm_mode_debug_printmodeline(&state->mode); return -EINVAL; + } state->mode_blob = drm_property_blob_get(blob); state->enable = true; |