[PATCH AUTOSEL for 4.15 094/102] ASoC: nuc900: Fix a loop timeout test

[Sasha Levin]

From: Dan Carpenter <dan.carpen...@oracle.com>

[ Upstream commit 65a12b3aafed5fc59f4ce41b22b752b1729e6701 ]

We should be finishing the loop with timeout set to zero but because
this is a post-op we finish with timeout == -1.

Fixes: 1082e2703a2d ("ASoC: NUC900/audio: add nuc900 audio driver support")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
Signed-off-by: Mark Brown <broo...@kernel.org>
Signed-off-by: Sasha Levin <alexander.le...@microsoft.com>
---
 sound/soc/nuc900/nuc900-ac97.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/nuc900/nuc900-ac97.c b/sound/soc/nuc900/nuc900-ac97.c
index b6615affe571..fde974d52bb2 100644
--- a/sound/soc/nuc900/nuc900-ac97.c
+++ b/sound/soc/nuc900/nuc900-ac97.c
@@ -67,7 +67,7 @@ static unsigned short nuc900_ac97_read(struct snd_ac97 *ac97,
 
        /* polling the AC_R_FINISH */
        while (!(AUDIO_READ(nuc900_audio->mmio + ACTL_ACCON) & AC_R_FINISH)
-                                                               && timeout--)
+                                                               && --timeout)
                mdelay(1);
 
        if (!timeout) {
@@ -121,7 +121,7 @@ static void nuc900_ac97_write(struct snd_ac97 *ac97, 
unsigned short reg,
 
        /* polling the AC_W_FINISH */
        while ((AUDIO_READ(nuc900_audio->mmio + ACTL_ACCON) & AC_W_FINISH)
-                                                               && timeout--)
+                                                               && --timeout)
                mdelay(1);
 
        if (!timeout)
-- 
2.14.1