[PATCH v2 09/25] ASoC: atmel: atmel-pcm-pdc: Fix atmel_pcm_close() being skipped on rollback

[phucduc.bui at gmail.com]

From: bui duc phuc <phucduc.bui at gmail.com>

snd_pcm_hw_constraint_integer() may return 1, which is then returned
from atmel_pcm_open(). ASoC only marks the component as opened
when .open() returns 0, so .close() can be skipped on rollback.

Return 0 explicitly on success.

Fixes: 92dfa6198623 ("ASoC: atmel-pcm: split into two file")
Signed-off-by: bui duc phuc <phucduc.bui at gmail.com>
---
 sound/soc/atmel/atmel-pcm-pdc.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sound/soc/atmel/atmel-pcm-pdc.c b/sound/soc/atmel/atmel-pcm-pdc.c
index 374f93fa6e0b..4cedf2ad934d 100644
--- a/sound/soc/atmel/atmel-pcm-pdc.c
+++ b/sound/soc/atmel/atmel-pcm-pdc.c
@@ -295,6 +295,13 @@ static int atmel_pcm_open(struct snd_soc_component *component,
 	}
 	runtime->private_data = prtd;
 
+	/*
+	 * ASoC only marks the component as opened when .open() returns 0.
+	 * Since snd_pcm_hw_constraint_integer() may return 1, explicitly
+	 * return 0 to ensure .close() is not skipped on rollback.
+	 */
+	return 0;
+
  out:
 	return ret;
 }
-- 
2.43.0