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-rw-r--r--fs/btrfs/ctree.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 99599f1c1554..b5baff0dccfe 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -2516,6 +2516,9 @@ static int push_leaf_right(struct btrfs_trans_handle *trans, struct btrfs_root
2516 btrfs_assert_tree_locked(path->nodes[1]); 2516 btrfs_assert_tree_locked(path->nodes[1]);
2517 2517
2518 right = read_node_slot(root, upper, slot + 1); 2518 right = read_node_slot(root, upper, slot + 1);
2519 if (right == NULL)
2520 return 1;
2521
2519 btrfs_tree_lock(right); 2522 btrfs_tree_lock(right);
2520 btrfs_set_lock_blocking(right); 2523 btrfs_set_lock_blocking(right);
2521 2524
@@ -2766,6 +2769,9 @@ static int push_leaf_left(struct btrfs_trans_handle *trans, struct btrfs_root
2766 btrfs_assert_tree_locked(path->nodes[1]); 2769 btrfs_assert_tree_locked(path->nodes[1]);
2767 2770
2768 left = read_node_slot(root, path->nodes[1], slot - 1); 2771 left = read_node_slot(root, path->nodes[1], slot - 1);
2772 if (left == NULL)
2773 return 1;
2774
2769 btrfs_tree_lock(left); 2775 btrfs_tree_lock(left);
2770 btrfs_set_lock_blocking(left); 2776 btrfs_set_lock_blocking(left);
2771 2777