v4l2h264dec: Fix Raspberry Pi4 will not play video in application

Ensure object v4l2object->pool will be released by
correctly releasing the temporary thread-safety lock

Fixes issue #1729

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3815>

diff --git a/subprojects/gst-plugins-good/sys/v4l2/gstv4l2object.c b/subprojects/gst-plugins-good/sys/v4l2/gstv4l2object.c
index 032fd69..a992341 100644 (file)
--- a/subprojects/gst-plugins-good/sys/v4l2/gstv4l2object.c
+++ b/subprojects/gst-plugins-good/sys/v4l2/gstv4l2object.c
@@ -4643,8 +4643,8 @@ gst_v4l2_object_stop (GstV4l2Object * v4l2object)
         if (old_pool)
           gst_object_unref (old_pool);
       }
-      gst_object_unref (pool);
     }
+    gst_object_unref (pool);
   }
 
   GST_V4L2_SET_INACTIVE (v4l2object);