scsi: qla1280: Fix warning comparing pointer to 0

Fix the following coccicheck warning:

./drivers/scsi/qla1280.c:3057:37-38: WARNING comparing pointer to 0.

Link: https://lore.kernel.org/r/1615780159-94708-1-git-send-email-jiapeng.chong@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qla1280.c

@@ -3054,7 +3054,7 @@ qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
 
 	/* Check for empty slot in outstanding command list. */
 	for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
-		     (ha->outstanding_cmds[cnt] != 0); cnt++) ;
+	     ha->outstanding_cmds[cnt]; cnt++);
 
 	if (cnt >= MAX_OUTSTANDING_COMMANDS) {
 		status = SCSI_MLQUEUE_HOST_BUSY;