diff options
| -rw-r--r-- | drivers/gpu/drm/drm_atomic_uapi.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c index efab3d518891..9df7f2a170e3 100644 --- a/drivers/gpu/drm/drm_atomic_uapi.c +++ b/drivers/gpu/drm/drm_atomic_uapi.c @@ -1330,22 +1330,35 @@ int drm_mode_atomic_ioctl(struct drm_device *dev, * though this may be a bit overkill, since legacy userspace * wouldn't know how to call this ioctl) */ - if (!file_priv->atomic) + if (!file_priv->atomic) { + drm_dbg_atomic(dev, + "commit failed: atomic cap not enabled\n"); return -EINVAL; + } - if (arg->flags & ~DRM_MODE_ATOMIC_FLAGS) + if (arg->flags & ~DRM_MODE_ATOMIC_FLAGS) { + drm_dbg_atomic(dev, "commit failed: invalid flag\n"); return -EINVAL; + } - if (arg->reserved) + if (arg->reserved) { + drm_dbg_atomic(dev, "commit failed: reserved field set\n"); return -EINVAL; + } - if (arg->flags & DRM_MODE_PAGE_FLIP_ASYNC) + if (arg->flags & DRM_MODE_PAGE_FLIP_ASYNC) { + drm_dbg_atomic(dev, + "commit failed: invalid flag DRM_MODE_PAGE_FLIP_ASYNC\n"); return -EINVAL; + } /* can't test and expect an event at the same time. */ if ((arg->flags & DRM_MODE_ATOMIC_TEST_ONLY) && - (arg->flags & DRM_MODE_PAGE_FLIP_EVENT)) + (arg->flags & DRM_MODE_PAGE_FLIP_EVENT)) { + drm_dbg_atomic(dev, + "commit failed: page-flip event requested with test-only commit\n"); return -EINVAL; + } state = drm_atomic_state_alloc(dev); if (!state) |