[SCSI] drivers/scsi: Use ARRAY_SIZE macro

Use ARRAY_SIZE macro instead of sizeof(x)/sizeof(x[0]) and remove
duplicates of the macro.

Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c
index e3bd4bc..ce0ba3a 100644
--- a/drivers/scsi/osst.c
+++ b/drivers/scsi/osst.c
@@ -5492,7 +5492,7 @@
   char *stp;
 
   stp = get_options(str, ARRAY_SIZE(ints), ints);
-	
+
   if (ints[0] > 0) {
 	for (i = 0; i < ints[0] && i < ARRAY_SIZE(parms); i++)
 		  *parms[i].val = ints[i + 1];
@@ -5507,7 +5507,7 @@
 				break;
 			}
 		}
-		if (i >= sizeof(parms) / sizeof(struct osst_dev_parm))
+		if (i >= ARRAY_SIZE(parms))
 			printk(KERN_INFO "osst :I: Illegal parameter in '%s'\n",
 			       stp);
 		stp = strchr(stp, ',');