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(-)
--- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -1476,7 +1476,7 @@ 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; }
/*