[PATCH 11/19] ASoC: codecs: cs35l32: Propagate regcache_sync() errors

[Pengpeng Hou]

regcache_sync() can fail while replaying cached register state during
runtime resume. cs35l32_runtime_resume() currently ignores that failure.

Propagate the error, restore cache-only/dirty state, and unwind the
reset and supply state acquired by runtime resume.

Signed-off-by: Pengpeng Hou <pengpeng@xxxxxxxxxxx>
---
 sound/soc/codecs/cs35l32.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/cs35l32.c b/sound/soc/codecs/cs35l32.c
index c835088de578..8288fb6d50be 100644
--- a/sound/soc/codecs/cs35l32.c
+++ b/sound/soc/codecs/cs35l32.c
@@ -538,7 +538,15 @@ static int cs35l32_runtime_resume(struct device *dev)
 	gpiod_set_value_cansleep(cs35l32->reset_gpio, 1);
 
 	regcache_cache_only(cs35l32->regmap, false);
-	regcache_sync(cs35l32->regmap);
+	ret = regcache_sync(cs35l32->regmap);
+	if (ret) {
+		regcache_cache_only(cs35l32->regmap, true);
+		regcache_mark_dirty(cs35l32->regmap);
+		gpiod_set_value_cansleep(cs35l32->reset_gpio, 0);
+		regulator_bulk_disable(ARRAY_SIZE(cs35l32->supplies),
+				       cs35l32->supplies);
+		return ret;
+	}
 
 	return 0;
 }
-- 
2.43.0