scsi: oak: Remove redundant initialization of variable ret

No point in initializing ret with -ENOMEM.

Link: https://lore.kernel.org/r/20200918090747.44645-1-jingxiangfeng@huawei.comAcked-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/arm/oak.c

@@ -120,7 +120,7 @@ static struct scsi_host_template oakscsi_template = {
 static int oakscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
 {
 	struct Scsi_Host *host;
-	int ret = -ENOMEM;
+	int ret;
 
 	ret = ecard_request_resources(ec);
 	if (ret)