From: Nicolin Chen <nicoleotsuka@gmail.com>
Date: Tue, 31 May 2016 23:06:39 +0000 (-0700)
Subject: ASoC: cs53l30: Check return value of regcache_sync()
X-Git-Tag: v4.8-rc1~84^2~1^2~8^2~7
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=87a4bb11355f8b59c0d865a96044b5853f6c222e;p=karo-tx-linux.git

ASoC: cs53l30: Check return value of regcache_sync()

Regcache_sync() might fail. So this patch adds a return value Check for it.

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Acked-by: Paul Handrigan <Paul.Handrigan@cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/sound/soc/codecs/cs53l30.c b/sound/soc/codecs/cs53l30.c
index 9aff449e57af..ac90dd79857e 100644
--- a/sound/soc/codecs/cs53l30.c
+++ b/sound/soc/codecs/cs53l30.c
@@ -1055,7 +1055,11 @@ static int cs53l30_runtime_resume(struct device *dev)
 		gpiod_set_value_cansleep(cs53l30->reset_gpio, 1);
 
 	regcache_cache_only(cs53l30->regmap, false);
-	regcache_sync(cs53l30->regmap);
+	ret = regcache_sync(cs53l30->regmap);
+	if (ret) {
+		dev_err(dev, "failed to synchronize regcache: %d\n", ret);
+		return ret;
+	}
 
 	return 0;
 }