drm: kerneldoc fixes for blob properties

Change '@param foo' to '@foo:' to fit kerneldoc style.

672cb1d6ae mistakenly added an extra parameter to the kerneldoc for
drm_property_unreference_blob which wasn't actually present.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 4059f06..7e5085f 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -4270,7 +4270,7 @@
  *
  * Internal free function for blob properties; must not be used directly.
  *
- * @param kref Reference
+ * @kref: Reference
  */
 static void drm_property_free_blob(struct kref *kref)
 {
@@ -4290,7 +4290,7 @@
  *
  * Drop a reference on a blob property. May free the object.
  *
- * @param blob Pointer to blob property
+ * @blob: Pointer to blob property
  */
 void drm_property_unreference_blob(struct drm_property_blob *blob)
 {
@@ -4318,8 +4318,7 @@
  * Drop a reference on a blob property. May free the object. This must be
  * called with blob_lock held.
  *
- * @param dev  Device the blob was created on
- * @param blob Pointer to blob property
+ * @blob: Pointer to blob property
  */
 static void drm_property_unreference_blob_locked(struct drm_property_blob *blob)
 {
@@ -4336,7 +4335,7 @@
  *
  * Take a new reference on an existing blob property.
  *
- * @param blob Pointer to blob property
+ * @blob: Pointer to blob property
  */
 struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob)
 {