[PATCH 04/19] ASoC: codecs: max98373: Propagate regcache_sync() errors

[Pengpeng Hou]

regcache_sync() can fail while replaying cached register state after
resume. max98373_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/max98373-i2c.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/max98373-i2c.c b/sound/soc/codecs/max98373-i2c.c
index 8805bd01153c..cbd7ebffa6d6 100644
--- a/sound/soc/codecs/max98373-i2c.c
+++ b/sound/soc/codecs/max98373-i2c.c
@@ -488,10 +488,17 @@ static int max98373_suspend(struct device *dev)
 static int max98373_resume(struct device *dev)
 {
 	struct max98373_priv *max98373 = dev_get_drvdata(dev);
+	int ret;
 
 	regcache_cache_only(max98373->regmap, false);
 	max98373_reset(max98373, dev);
-	regcache_sync(max98373->regmap);
+	ret = regcache_sync(max98373->regmap);
+	if (ret) {
+		regcache_cache_only(max98373->regmap, true);
+		regcache_mark_dirty(max98373->regmap);
+		return ret;
+	}
+
 	return 0;
 }
 
-- 
2.43.0