[PATCH 3/3] ASoC: wm_adsp: Treat missing compressed buffer as a fatal error

[Charles Keepax <ckeepax@opensource.wolfsonmicro.com>]

If the DSP is powered down whilst a compressed stream is being processed
we should treat this as a fatal error, clearly the stream is no longer
valid.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
---
 sound/soc/codecs/wm_adsp.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index 8ed1cde..7e42474 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -3037,12 +3037,7 @@ int wm_adsp_compr_pointer(struct snd_compr_stream *stream,
 
 	buf = compr->buf;
 
-	if (!compr->buf) {
-		ret = -ENXIO;
-		goto out;
-	}
-
-	if (compr->buf->error) {
+	if (!compr->buf || compr->buf->error) {
 		snd_compr_stop_error(stream, SNDRV_PCM_STATE_XRUN);
 		ret = -EIO;
 		goto out;
@@ -3161,10 +3156,7 @@ static int wm_adsp_compr_read(struct wm_adsp_compr *compr,
 
 	adsp_dbg(dsp, "Requested read of %zu bytes\n", count);
 
-	if (!compr->buf)
-		return -ENXIO;
-
-	if (compr->buf->error) {
+	if (!compr->buf || compr->buf->error) {
 		snd_compr_stop_error(compr->stream, SNDRV_PCM_STATE_XRUN);
 		return -EIO;
 	}
-- 
2.1.4