scsi: mptfusion: Remove redundant variable r

Variable r is being assigned a value that is never read. The assignment is
redundant and so is the variable, so remove these. Remove unnecessary the
{} braces in the if statement too.

Link: https://lore.kernel.org/r/20211205225901.54362-1-colin.i.king@gmail.comSigned-off-by: NColin Ian King <colin.i.king@gmail.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

drivers/message/fusion/mptbase.c

@@ -1274,8 +1274,6 @@ mpt_send_handshake_request(u8 cb_idx, MPT_ADAPTER *ioc, int reqBytes, u32 *req,
 static int
 mpt_host_page_access_control(MPT_ADAPTER *ioc, u8 access_control_value, int sleepFlag)
 {
-	int	 r = 0;
-
 	/* return if in use */
 	if (CHIPREG_READ32(&ioc->chip->Doorbell)
 	    & MPI_DOORBELL_ACTIVE)
@@ -1289,9 +1287,9 @@ mpt_host_page_access_control(MPT_ADAPTER *ioc, u8 access_control_value, int slee
 		 (access_control_value<<12)));
 
 	/* Wait for IOC to clear Doorbell Status bit */
-	if ((r = WaitForDoorbellAck(ioc, 5, sleepFlag)) < 0) {
+	if (WaitForDoorbellAck(ioc, 5, sleepFlag) < 0)
 		return -2;
-	}else
+	else
 		return 0;
 }