[PATCH] drivers/mtd: 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>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/mtd/maps/dmv182.c b/drivers/mtd/maps/dmv182.c
index b993ac0..2bb3c0f 100644
--- a/drivers/mtd/maps/dmv182.c
+++ b/drivers/mtd/maps/dmv182.c
@@ -99,7 +99,7 @@
 static int __init init_svme182(void)
 {
 	struct mtd_partition *partitions;
-	int num_parts = sizeof(svme182_partitions) / sizeof(struct mtd_partition);
+	int num_parts = ARRAY_SIZE(svme182_partitions);
 
 	partitions = svme182_partitions;