v4l2videodec: Don't leak codec name
diff --git a/sys/v4l2/gstv4l2videodec.c b/sys/v4l2/gstv4l2videodec.c
index 0f19cc6..0183b25 100644
--- a/sys/v4l2/gstv4l2videodec.c
+++ b/sys/v4l2/gstv4l2videodec.c
@@ -1058,6 +1058,8 @@
       g_free (type_name);
       type_name = g_strdup_printf ("v4l2%s%sdec", basename, codec_name);
     }
+
+    g_free (codec_name);
   }
 
   return type_name;