Subject: [PATCH 2/5] ASoC: dwc: Don't allow negative use counts

From: [email-masked] (Andrew Jackson)
Date: Wed, 03 Dec 2014 16:38:55 +0000

Signed-off-by: Andrew Jackson <[email-masked]>
---
 sound/soc/dwc/designware_i2s.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/sound/soc/dwc/designware_i2s.c b/sound/soc/dwc/designware_i2s.c
index 08f0229..f8946bd 100644
--- a/sound/soc/dwc/designware_i2s.c
+++ b/sound/soc/dwc/designware_i2s.c
@@ -280,7 +280,8 @@ static int dw_i2s_trigger(struct snd_pcm_substream *substream,
 	case SNDRV_PCM_TRIGGER_STOP:
 	case SNDRV_PCM_TRIGGER_SUSPEND:
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-		dev->active--;
+		if (dev->active > 0)
+			dev->active--;
 		i2s_stop(dev, substream);
 		break;
 	default:
-- 
1.7.1