V4L/DVB (5476): Fix gpiomux array size

there were several "magic" for loops, addressing gpiomux array size (4).
Adrian Bunk showed that one of the loops were wrong, going from 0 to 4.

This patch provides the right fix for this trouble, by using ARRAY_SIZE
on all places where we have a for loop using gpiomux.

Thanks to: Adrian Bunk <bunk@stusta.de> for pointing me about this trouble.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/media/video/bt8xx/bttv-cards.c b/drivers/media/video/bt8xx/bttv-cards.c
index 6addc42df045..3d00d50d9cb9 100644
--- a/drivers/media/video/bt8xx/bttv-cards.c
+++ b/drivers/media/video/bt8xx/bttv-cards.c
@@ -2970,20 +2970,20 @@ void __devinit bttv_idcard(struct bttv *btv)
 
         if (UNSET != audiomux[0]) {
                 gpiobits = 0;
-                for (i = 0; i < 4; i++) {
+                for (i = 0; i < ARRAY_SIZE(bttv_tvcards->gpiomux); i++) {
                         bttv_tvcards[btv->c.type].gpiomux[i] = audiomux[i];
                         gpiobits |= audiomux[i];
                 }
         } else {
                 gpiobits = audioall;
-                for (i = 0; i < 4; i++) {
+                for (i = 0; i < ARRAY_SIZE(bttv_tvcards->gpiomux); i++) {
                         bttv_tvcards[btv->c.type].gpiomux[i] = audioall;
                 }
         }
         bttv_tvcards[btv->c.type].gpiomask = (UNSET != gpiomask) ? gpiomask : gpiobits;
         printk(KERN_INFO "bttv%d: gpio config override: mask=0x%x, mux=",
                btv->c.nr,bttv_tvcards[btv->c.type].gpiomask);
-        for (i = 0; i < 5; i++) {
+        for (i = 0; i < ARRAY_SIZE(bttv_tvcards->gpiomux); i++) {
                 printk("%s0x%x", i ? "," : "", bttv_tvcards[btv->c.type].gpiomux[i]);
         }
         printk("\n");