scsi: message: fusion: Use kmemdup instead of memcpy and kmalloc

Replace kmalloc + memcpy with kmemdup.

This was reported by coccinelle.
Signed-off-by: Bharath Vedartham <linux.bhar@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/message/fusion/mptbase.c

@@ -6001,13 +6001,12 @@ mpt_findImVolumes(MPT_ADAPTER *ioc)
 	if (mpt_config(ioc, &cfg) != 0)
 		goto out;
 
-	mem = kmalloc(iocpage2sz, GFP_KERNEL);
+	mem = kmemdup(pIoc2, iocpage2sz, GFP_KERNEL);
 	if (!mem) {
 		rc = -ENOMEM;
 		goto out;
 	}
 
-	memcpy(mem, (u8 *)pIoc2, iocpage2sz);
 	ioc->raid_data.pIocPg2 = (IOCPage2_t *) mem;
 
 	mpt_read_ioc_pg_3(ioc);