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Diffstat (limited to 'fs/btrfs/extent-tree.c')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index a6a8159..5bc658a 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -6067,6 +6067,8 @@ static noinline int do_walk_down(struct btrfs_trans_handle *trans, if (reada && level == 1) reada_walk_down(trans, root, wc, path); next = read_tree_block(root, bytenr, blocksize, generation); + if (!next) + return -EIO; btrfs_tree_lock(next); btrfs_set_lock_blocking(next); } @@ -7937,6 +7939,10 @@ static noinline int relocate_one_extent(struct btrfs_root *extent_root, eb = read_tree_block(found_root, block_start, block_size, 0); + if (!eb) { + ret = -EIO; + goto out; + } btrfs_tree_lock(eb); BUG_ON(level != btrfs_header_level(eb)); |