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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>
hifive-unleashed-5.1
Russell King 2011-01-12 23:17:24 +00:00
parent fd015480c2
commit 69058cd6d1
1 changed files with 3 additions and 3 deletions
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6
sound/arm/aaci.c
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@ -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;