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Btrfs: fix missing mutex_unlock in btrfs_del_dir_entries_in_log() 

It is necessary to unlock mutex_lock before it return an error when
btrfs_alloc_path() fails.

Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Tsutomu Itoh 2011-04-25 19:43:51 -04:00 committed by Chris Mason
parent f65647c29b
commit a62f44a5f4
1 changed files with 5 additions and 2 deletions
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7
fs/btrfs/tree-log.c
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@ -2209,8 +2209,10 @@ int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans,
log = root->log_root;
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
if (!path) {
err = -ENOMEM;
goto out_unlock;
}
di = btrfs_lookup_dir_item(trans, log, path, dir->i_ino,
name, name_len, -1);
@ -2271,6 +2273,7 @@ int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans,
}
fail:
btrfs_free_path(path);
out_unlock:
mutex_unlock(&BTRFS_I(dir)->log_mutex);
if (ret == -ENOSPC) {
root->fs_info->last_trans_log_full_commit = trans->transid;