[PATCH 05/19] ASoC: codecs: max98388: Propagate regcache_sync() errors

[Pengpeng Hou]

regcache_sync() can fail while replaying cached register state after
resume. max98388_resume() currently ignores that failure and returns
success.

Propagate the error and restore cache-only/dirty state on failure.

Signed-off-by: Pengpeng Hou <pengpeng@xxxxxxxxxxx>
---
 sound/soc/codecs/max98388.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/max98388.c b/sound/soc/codecs/max98388.c
index a4c57152d25f..d97dab41bf0f 100644
--- a/sound/soc/codecs/max98388.c
+++ b/sound/soc/codecs/max98388.c
@@ -863,10 +863,16 @@ static int max98388_suspend(struct device *dev)
 static int max98388_resume(struct device *dev)
 {
 	struct max98388_priv *max98388 = dev_get_drvdata(dev);
+	int ret;
 
 	regcache_cache_only(max98388->regmap, false);
 	max98388_reset(max98388, dev);
-	regcache_sync(max98388->regmap);
+	ret = regcache_sync(max98388->regmap);
+	if (ret) {
+		regcache_cache_only(max98388->regmap, true);
+		regcache_mark_dirty(max98388->regmap);
+		return ret;
+	}
 
 	return 0;
 }
-- 
2.43.0