[ARM] AACI: timeout will reach -1

With a postfix decrement the timeout will reach -1 rather than 0,
so the warning will not be issued.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 3 insertions, 3 deletions

diff --git a/sound/arm/aaci.c b/sound/arm/aaci.c
index 89096e811a4b..772901e41ecb 100644
--- a/sound/arm/aaci.c
+++ b/sound/arm/aaci.c
@@ -90,7 +90,7 @@ static void aaci_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
          */
         do {
                 v = readl(aaci->base + AACI_SLFR);
-        } while ((v & (SLFR_1TXB|SLFR_2TXB)) && timeout--);
+        } while ((v & (SLFR_1TXB|SLFR_2TXB)) && --timeout);
 
         if (!timeout)
                 dev_err(&aaci->dev->dev,
@@ -126,7 +126,7 @@ static unsigned short aaci_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
          */
         do {
                 v = readl(aaci->base + AACI_SLFR);
-        } while ((v & SLFR_1TXB) && timeout--);
+        } while ((v & SLFR_1TXB) && --timeout);
 
         if (!timeout) {
                 dev_err(&aaci->dev->dev, "timeout on slot 1 TX busy\n");
@@ -147,7 +147,7 @@ static unsigned short aaci_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
         do {
                 cond_resched();
                 v = readl(aaci->base + AACI_SLFR) & (SLFR_1RXV|SLFR_2RXV);
-        } while ((v != (SLFR_1RXV|SLFR_2RXV)) && timeout--);
+        } while ((v != (SLFR_1RXV|SLFR_2RXV)) && --timeout);
 
         if (!timeout) {
                 dev_err(&aaci->dev->dev, "timeout on RX valid\n");