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block: drbd: remove a stray unlock in __drbd_send_protocol()

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[ Upstream commit 8e9c523016cf9983b295e4bc659183d1fa6ef8e0 ]

There are two callers of this function and they both unlock the mutex so
this ends up being a double unlock.

Fixes: 44ed167da748 ("drbd: rcu_read_lock() and rcu_dereference() for tconn->net_conf")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dan Carpenter 2019-11-07 10:48:47 +03:00 committed by Greg Kroah-Hartman
parent a7c4a8ed58
commit b68abc88ca
1 changed files with 0 additions and 1 deletions
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drivers/block/drbd/drbd_main.c
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@ -795,7 +795,6 @@ int __drbd_send_protocol(struct drbd_connection *connection, enum drbd_packet cm
if (nc->tentative && connection->agreed_pro_version < 92) {
rcu_read_unlock();
mutex_unlock(&sock->mutex);
drbd_err(connection, "--dry-run is not supported by peer");
return -EOPNOTSUPP;
}