RDMA/core: Remove the redundant return statements

The return statements at the end of a void function is meaningless.

Link: https://lore.kernel.org/r/1617783353-48249-3-git-send-email-liweihang@huawei.comSigned-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/core/mad.c

@@ -1860,8 +1860,6 @@ static void ib_mad_complete_recv(struct ib_mad_agent_private *mad_agent_priv,
 						   mad_recv_wc);
 		deref_mad_agent(mad_agent_priv);
 	}
-
-	return;
 }
 
 static enum smi_action handle_ib_smi(const struct ib_mad_port_private *port_priv,

drivers/infiniband/core/sysfs.c

@@ -1049,7 +1049,6 @@ static void setup_hw_stats(struct ib_device *device, struct ib_port *port,
 	kfree(hsag);
 err_free_stats:
 	kfree(stats);
-	return;
 }
 
 static int add_port(struct ib_core_device *coredev, int port_num)