[PATCH] ASoC: codecs: max98927: Propagate regcache_sync() errors

[Pengpeng Hou]

max98927_resume() leaves cache-only mode and replays cached register
state into the device. It currently ignores regcache_sync() failures and
returns success.

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

Signed-off-by: Pengpeng Hou <pengpeng@xxxxxxxxxxx>
---
 sound/soc/codecs/max98927.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/max98927.c b/sound/soc/codecs/max98927.c
index 65e6fdb30eec..524300d8fb0b 100644
--- a/sound/soc/codecs/max98927.c
+++ b/sound/soc/codecs/max98927.c
@@ -742,11 +742,17 @@ static int max98927_suspend(struct device *dev)
 static int max98927_resume(struct device *dev)
 {
 	struct max98927_priv *max98927 = dev_get_drvdata(dev);
+	int ret;
 
 	regmap_write(max98927->regmap, MAX98927_R0100_SOFT_RESET,
 		     MAX98927_SOFT_RESET);
 	regcache_cache_only(max98927->regmap, false);
-	regcache_sync(max98927->regmap);
+	ret = regcache_sync(max98927->regmap);
+	if (ret) {
+		regcache_cache_only(max98927->regmap, true);
+		regcache_mark_dirty(max98927->regmap);
+		return ret;
+	}
 	return 0;
 }
 
-- 
2.43.0