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authorLiu Bo <bo.liu@linux.alibaba.com>2018-04-02 19:59:48 +0200
committerDavid Sterba <dsterba@suse.com>2018-04-05 19:22:26 +0200
commitb98def7ca6e152ee55e36863dddf6f41f12d1dc6 (patch)
treea49615ca3fc4514942e4d81b4246622d36f6b28d
parentBtrfs: fix NULL pointer dereference in log_dir_items (diff)
downloadlinux-b98def7ca6e152ee55e36863dddf6f41f12d1dc6.tar.xz
linux-b98def7ca6e152ee55e36863dddf6f41f12d1dc6.zip
Btrfs: bail out on error during replay_dir_deletes
If errors were returned by btrfs_next_leaf(), replay_dir_deletes needs to bail out, otherwise @ret would be forced to be 0 after 'break;' and the caller won't be aware of it. Fixes: e02119d5a7b4 ("Btrfs: Add a write ahead tree log to optimize synchronous operations") Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com> Signed-off-by: David Sterba <dsterba@suse.com>
-rw-r--r--fs/btrfs/tree-log.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index c6bfa86e2f22..678154d4b78f 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -2352,8 +2352,10 @@ again:
nritems = btrfs_header_nritems(path->nodes[0]);
if (path->slots[0] >= nritems) {
ret = btrfs_next_leaf(root, path);
- if (ret)
+ if (ret == 1)
break;
+ else if (ret < 0)
+ goto out;
}
btrfs_item_key_to_cpu(path->nodes[0], &found_key,
path->slots[0]);