[alsa-devel] [PATCH - PCM rate 1/1] pcm: rate: Use signed variable for return of snd_pcm_avail_update

[twischer at de.adit-jv.com]

From: Timo Wischer <twischer at de.adit-jv.com>

Without this changes a negative error code returned by
snd_pcm_avail_update() will be not handled correctly

Signed-off-by: Timo Wischer <twischer at de.adit-jv.com>

diff --git a/src/pcm/pcm_rate.c b/src/pcm/pcm_rate.c
index 4e0c7ca..031a43d 100644
--- a/src/pcm/pcm_rate.c
+++ b/src/pcm/pcm_rate.c
@@ -970,9 +970,12 @@ static snd_pcm_sframes_t snd_pcm_rate_avail_update(snd_pcm_t *pcm)
 {
 	snd_pcm_rate_t *rate = pcm->private_data;
 	snd_pcm_t *slave = rate->gen.slave;
-	snd_pcm_uframes_t slave_size;
+	snd_pcm_sframes_t slave_size;
 
 	slave_size = snd_pcm_avail_update(slave);
+	if (slave_size < 0)
+		return slave_size;
+
 	if (pcm->stream == SND_PCM_STREAM_CAPTURE)
 		goto _capture;
 	snd_pcm_rate_sync_hwptr(pcm);
-- 
2.7.4