scsi: snic: Make snic_io_exch_ver_cmpl_handler() return void

This function does not need a return value since no callers depend on
it. Make it return void.

This also fixes the coccicheck warning:

drivers/scsi/snic/snic_ctl.c:163:5-8: Unneeded variable: "ret". Return
"0" on line 228

Link: https://lore.kernel.org/r/20200418070615.11603-1-yanaijie@huawei.comReported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/snic/snic.h

@@ -399,7 +399,7 @@ void snic_handle_link_event(struct snic *);
 void snic_handle_link(struct work_struct *);
 
 int snic_queue_exch_ver_req(struct snic *);
-int snic_io_exch_ver_cmpl_handler(struct snic *, struct snic_fw_req *);
+void snic_io_exch_ver_cmpl_handler(struct snic *, struct snic_fw_req *);
 
 int snic_queue_wq_desc(struct snic *, void *os_buf, u16 len);
 

drivers/scsi/snic/snic_ctl.c

@@ -151,7 +151,7 @@ snic_queue_exch_ver_req(struct snic *snic)
 /*
  * snic_io_exch_ver_cmpl_handler
  */
-int
+void
 snic_io_exch_ver_cmpl_handler(struct snic *snic, struct snic_fw_req *fwreq)
 {
 	struct snic_req_info *rqi = NULL;
@@ -160,7 +160,6 @@ snic_io_exch_ver_cmpl_handler(struct snic *snic, struct snic_fw_req *fwreq)
 	u32 cmnd_id, hid, max_sgs;
 	ulong ctx = 0;
 	unsigned long flags;
-	int ret = 0;
 
 	SNIC_HOST_INFO(snic->shost, "Exch Ver Compl Received.\n");
 	snic_io_hdr_dec(&fwreq->hdr, &typ, &hdr_stat, &cmnd_id, &hid, &ctx);
@@ -224,8 +223,6 @@ snic_io_exch_ver_cmpl_handler(struct snic *snic, struct snic_fw_req *fwreq)
 	snic_release_untagged_req(snic, rqi);
 
 	SNIC_HOST_INFO(snic->shost, "Exch_cmpl Done, hdr_stat %d.\n", hdr_stat);
-
-	return ret;
 } /* end of snic_io_exch_ver_cmpl_handler */
 
 /*