diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index dedec3d9b1117d..c72c351fe7eb62 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -3419,6 +3419,7 @@ static int btrfs_relocate_sys_chunks(struct btrfs_fs_info *fs_info)
 			 * alignment and size).
 			 */
 			ret = -EUCLEAN;
+			mutex_unlock(&fs_info->reclaim_bgs_lock);
 			goto error;
 		}