btrfs: fix unbalanced unlock in qgroup_account_snapshot()
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: 2a4d84c1 ("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>
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