[Intel-gfx] [PATCH] drm/atomic: allow setting a blob to NULL using id = 0

[Lionel Landwerlin]

Signed-off-by: Lionel Landwerlin <lionel.g.landwer...@intel.com>
---
 drivers/gpu/drm/drm_atomic.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 65f007a..b8c90a4 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -403,12 +403,14 @@ EXPORT_SYMBOL(drm_atomic_set_mode_prop_for_crtc);
 static int drm_atomic_crtc_set_blob(struct drm_device *dev,
        struct drm_property_blob **state_blob, uint32_t blob_id)
 {
-       struct drm_property_blob *blob;
+       struct drm_property_blob *blob = NULL;
 
-       blob = drm_property_lookup_blob(dev, blob_id);
-       if (!blob) {
-               DRM_DEBUG_KMS("Invalid Blob ID\n");
-               return -EINVAL;
+       if (blob_id != 0) {
+               blob = drm_property_lookup_blob(dev, blob_id);
+               if (!blob) {
+                       DRM_DEBUG_KMS("Invalid Blob ID\n");
+                       return -EINVAL;
+               }
        }
 
        if (*state_blob)
-- 
2.6.3

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/intel-gfx