[PATCH] drivers/char: Use ARRAY_SIZE macro

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

Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c
index 79e490e..46a3a8c 100644
--- a/drivers/char/moxa.c
+++ b/drivers/char/moxa.c
@@ -448,7 +448,7 @@
 #ifdef CONFIG_PCI
 	{
 		struct pci_dev *p = NULL;
-		int n = (sizeof(moxa_pcibrds) / sizeof(moxa_pcibrds[0])) - 1;
+		int n = ARRAY_SIZE(moxa_pcibrds) - 1;
 		i = 0;
 		while (i < n) {
 			while ((p = pci_get_device(moxa_pcibrds[i].vendor, moxa_pcibrds[i].device, p))!=NULL)