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authorRussell King <rmk+kernel@arm.linux.org.uk>2011-01-12 23:17:24 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-01-25 21:18:05 +0000
commit69058cd6d10423126ab6aeb568f4af2bd34c49fe (patch)
tree45cdde9f2ec83788b35948b184d5aeac45ddd6a5 /sound/arm
parentfd015480c29deb52ae3bfaf41e888c450765edd8 (diff)
downloadlinux-linaro-69058cd6d10423126ab6aeb568f4af2bd34c49fe.tar.gz
ALSA: AACI: fix timeout condition checking
Ensure that a timeout coincident with the condition being waited for results in success rather than failure. This helps avoid timeout conditions being inappropriately flagged. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'sound/arm')
-rw-r--r--sound/arm/aaci.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/sound/arm/aaci.c b/sound/arm/aaci.c
index 91acc9a243e..21ff6296d16 100644
--- a/sound/arm/aaci.c
+++ b/sound/arm/aaci.c
@@ -88,7 +88,7 @@ static void aaci_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
v = readl(aaci->base + AACI_SLFR);
} while ((v & (SLFR_1TXB|SLFR_2TXB)) && --timeout);
- if (!timeout)
+ if (v & (SLFR_1TXB|SLFR_2TXB))
dev_err(&aaci->dev->dev,
"timeout waiting for write to complete\n");
@@ -124,7 +124,7 @@ static unsigned short aaci_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
v = readl(aaci->base + AACI_SLFR);
} while ((v & SLFR_1TXB) && --timeout);
- if (!timeout) {
+ if (v & SLFR_1TXB) {
dev_err(&aaci->dev->dev, "timeout on slot 1 TX busy\n");
v = ~0;
goto out;
@@ -145,7 +145,7 @@ static unsigned short aaci_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
v = readl(aaci->base + AACI_SLFR) & (SLFR_1RXV|SLFR_2RXV);
} while ((v != (SLFR_1RXV|SLFR_2RXV)) && --timeout);
- if (!timeout) {
+ if (v != (SLFR_1RXV|SLFR_2RXV)) {
dev_err(&aaci->dev->dev, "timeout on RX valid\n");
v = ~0;
goto out;