[PATCH 08/14] ASoC: rt1305: return cache sync errors from resume

[Pengpeng Hou]

rt1305_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: 29bc643ddd7e ("ASoC: rt1305: Add RT1305/RT1306 amplifier driver")
Assisted-by: gpt 5
Signed-off-by: Pengpeng Hou <pengpeng@xxxxxxxxxxx>
---
 sound/soc/codecs/rt1305.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/sound/soc/codecs/rt1305.c b/sound/soc/codecs/rt1305.c
index 2d5fad76cf52..601cbf9eb1e2 100644
--- a/sound/soc/codecs/rt1305.c
+++ b/sound/soc/codecs/rt1305.c
@@ -896,9 +896,7 @@ static int rt1305_resume(struct snd_soc_component *component)
 	struct rt1305_priv *rt1305 = snd_soc_component_get_drvdata(component);
 
 	regcache_cache_only(rt1305->regmap, false);
-	regcache_sync(rt1305->regmap);
-
-	return 0;
+	return regcache_sync(rt1305->regmap);
 }
 #else
 #define rt1305_suspend NULL
-- 
2.50.1 (Apple Git-155)