net/smc: cleanup listen worker mutex unlocking

For easier reading move the unlock of mutex smc_create_lgr_pending into
smc_listen_work(), i.e. into the function the mutex has been locked.
No functional change.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/smc/af_smc.c

@@ -1182,7 +1182,6 @@ static int smc_listen_rdma_finish(struct smc_sock *new_smc,
 	return 0;
 
 decline:
-	mutex_unlock(&smc_create_lgr_pending);
 	smc_listen_decline(new_smc, reason_code, local_contact);
 	return reason_code;
 }
@@ -1282,8 +1281,10 @@ static void smc_listen_work(struct work_struct *work)
 
 	/* finish worker */
 	if (!ism_supported) {
-		if (smc_listen_rdma_finish(new_smc, &cclc, local_contact))
+		if (smc_listen_rdma_finish(new_smc, &cclc, local_contact)) {
+			mutex_unlock(&smc_create_lgr_pending);
 			return;
+		}
 	}
 	smc_conn_save_peer_info(new_smc, &cclc);
 	mutex_unlock(&smc_create_lgr_pending);