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authorRoel Kluin <12o3l@tiscali.nl>2008-02-06 01:36:51 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-06 10:41:03 -0800
commitbe6c28e62e3a304b74013afab029af2021e1f50d (patch)
tree38d881b0bbdcf9c7913d25f5a88047abf1f62415 /sound/oss
parent67a3b2b6ce09809b21f60401e81663f2c8131640 (diff)
downloadlinux-linaro-stable-be6c28e62e3a304b74013afab029af2021e1f50d.tar.gz
sound/oss/trident.c: fix incorrect test in trident_ac97_set()
If count reaches zero, the loop ends, but the postfix decrement still subtracts: testing for 'count == 0' will not work. Signed-off-by: Roel Kluin <12o3l@tiscali.nl> Reviewed-by: Ray Lee <ray-lk@madrabbit.org> Acked-by: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'sound/oss')
-rw-r--r--sound/oss/trident.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/sound/oss/trident.c b/sound/oss/trident.c
index 96adc47917aa..6959ee1bd17f 100644
--- a/sound/oss/trident.c
+++ b/sound/oss/trident.c
@@ -2935,7 +2935,7 @@ trident_ac97_set(struct ac97_codec *codec, u8 reg, u16 val)
do {
if ((inw(TRID_REG(card, address)) & busy) == 0)
break;
- } while (count--);
+ } while (--count);
data |= (mask | (reg & AC97_REG_ADDR));
@@ -2996,7 +2996,7 @@ trident_ac97_get(struct ac97_codec *codec, u8 reg)
data = inl(TRID_REG(card, address));
if ((data & busy) == 0)
break;
- } while (count--);
+ } while (--count);
spin_unlock_irqrestore(&card->lock, flags);
if (count == 0) {