[PATCH 12/14] ASoC: rt5659: return cache sync errors from resume

[Pengpeng Hou]

rt5659_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: d3cb2de2479b ("ASoC: rt5659: add rt5659 codec driver")
Assisted-by: gpt 5
Signed-off-by: Pengpeng Hou <pengpeng@xxxxxxxxxxx>
---
 sound/soc/codecs/rt5659.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/sound/soc/codecs/rt5659.c b/sound/soc/codecs/rt5659.c
index 3097ee6d4e89..915b6b4b2630 100644
--- a/sound/soc/codecs/rt5659.c
+++ b/sound/soc/codecs/rt5659.c
@@ -3703,9 +3703,7 @@ static int rt5659_resume(struct snd_soc_component *component)
 	struct rt5659_priv *rt5659 = snd_soc_component_get_drvdata(component);
 
 	regcache_cache_only(rt5659->regmap, false);
-	regcache_sync(rt5659->regmap);
-
-	return 0;
+	return regcache_sync(rt5659->regmap);
 }
 #else
 #define rt5659_suspend NULL
-- 
2.50.1 (Apple Git-155)