fix: dev: Add a missing rcu_read_unlock() call on exit path
An exit path in the dns_dispatch_add() function fails to get out of the RCU critical section when returning early. Add the missing rcu_read_unlock() call.
Edited by Arаm Sаrgsyаn
An exit path in the dns_dispatch_add() function fails to get out of the RCU critical section when returning early. Add the missing rcu_read_unlock() call.