[PATCH 09/14] ASoC: rt1308: return cache sync errors from resume

[Pengpeng Hou]

rt1308_resume() restores cached registers during component resume but
discards the regcache_sync() result and returns success. A failed replay
can therefore leave the hardware register state stale without reaching
the component error reporting path.

Return the cache synchronization result. The ASoC component wrapper
reports a negative callback result and retains the established
best-effort resume state, so this adds observability without introducing
rollback or retry semantics.

The successful resume path is unchanged.

The issue was found by a tool we developed.

Fixes: 2b9def8c0d92 ("ASoC: rt1308: Add RT1308 amplifier driver")
Assisted-by: gpt 5
Signed-off-by: Pengpeng Hou <pengpeng@xxxxxxxxxxx>
---
 sound/soc/codecs/rt1308.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/sound/soc/codecs/rt1308.c b/sound/soc/codecs/rt1308.c
index 630946cd7cdf..df95cfbd76d6 100644
--- a/sound/soc/codecs/rt1308.c
+++ b/sound/soc/codecs/rt1308.c
@@ -715,9 +715,7 @@ static int rt1308_resume(struct snd_soc_component *component)
 	struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component);
 
 	regcache_cache_only(rt1308->regmap, false);
-	regcache_sync(rt1308->regmap);
-
-	return 0;
+	return regcache_sync(rt1308->regmap);
 }
 #else
 #define rt1308_suspend NULL
-- 
2.50.1 (Apple Git-155)