diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 760d950752f51..b5ed0a699ee5f 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -3173,7 +3173,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
 		if (!log_root_tree->node) {
 			ret = btrfs_alloc_log_tree_node(trans, log_root_tree);
 			if (ret) {
-				mutex_unlock(&fs_info->tree_log_mutex);
+				mutex_unlock(&fs_info->tree_root->log_mutex);
 				goto out;
 			}
 		}