diff mbox series

[5.12,047/700] btrfs: fix unbalanced unlock in qgroup_account_snapshot()

Message ID 20210712060931.339469794@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman July 12, 2021, 6:02 a.m. UTC 
From: Naohiro Aota <naohiro.aota@wdc.com>

commit 44365827cccc1441d4187509257e5276af133a49 upstream.

qgroup_account_snapshot() is trying to unlock the not taken
tree_log_mutex in a error path. Since ret != 0 in this case, we can
just return from here.

Fixes: 2a4d84c11a87 ("btrfs: move delayed ref flushing for qgroup into qgroup helper")
CC: stable@vger.kernel.org # 5.12+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/btrfs/transaction.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1461,7 +1461,7 @@  static int qgroup_account_snapshot(struc
 	ret = btrfs_run_delayed_refs(trans, (unsigned long)-1);
 	if (ret) {
 		btrfs_abort_transaction(trans, ret);
-		goto out;
+		return ret;
 	}
 
 	/*