IB/core: Avoid unnecessary return value check

Since there is nothing done with non zero return value, such check is
avoided.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/infiniband/core/security.c

@@ -692,20 +692,13 @@ void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent)
 
 int ib_mad_enforce_security(struct ib_mad_agent_private *map, u16 pkey_index)
 {
-	int ret;
-
 	if (map->agent.qp->qp_type == IB_QPT_SMI && !map->agent.smp_allowed)
 		return -EACCES;
 
-	ret = ib_security_pkey_access(map->agent.device,
+	return ib_security_pkey_access(map->agent.device,
 				       map->agent.port_num,
 				       pkey_index,
 				       map->agent.security);
-
-	if (ret)
-		return ret;
-
-	return 0;
 }
 
 #endif /* CONFIG_SECURITY_INFINIBAND */