btrfs_rm_dev_item calls several function under an activa transaction, however
it fails to abort it if an error happens. Fix this by adding explicit
btrfs_abort_transaction/btrfs_end_transaction calls
Signed-off-by: Nikolay Borisov <nbori...@suse.com>
---
v2:
* Explicitly handle every failure case w.r.t transaction abort rather than
rely on final btrfs_commit_transaction() to do the right thing.
* Also consider the -ENOENT case from btrfs_search_slot as a failure.
fs/btrfs/volumes.c | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 0e8f16c305df..4709c7919ef2 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1765,20 +1765,29 @@ static int btrfs_rm_dev_item(struct btrfs_fs_info
*fs_info,
key.offset = device->devid;
ret = btrfs_search_slot(trans, root, &key, path, -1, 1);
- if (ret < 0)
+ if (ret < 0) {
+ btrfs_abort_transaction(trans, ret);
+ btrfs_end_transaction(trans);
goto out;
+ }
if (ret > 0) {
ret = -ENOENT;
+ btrfs_abort_transaction(trans, ret);
+ btrfs_end_transaction(trans);
goto out;
}
ret = btrfs_del_item(trans, root, path);
- if (ret)
+ if (ret) {
+ btrfs_abort_transaction(trans, ret);
+ btrfs_end_transaction(trans);
goto out;
+ }
+
+ ret = btrfs_commit_transaction(trans);
out:
btrfs_free_path(path);
- btrfs_commit_transaction(trans);
return ret;
}
--
2.7.4
--
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