[alsa-devel] [PATCH v2] ASoC: rt5677: Return error if devm_gpiod_get_optional return ERR_PTR

Axel Lin axel.lin at ingics.com
Sat Jul 25 04:23:40 CEST 2015


If devm_gpiod_get_optional() return ERR_PTR, it means something wrong
so request gpio fails. We had better return error in such case.

Signed-off-by: Axel Lin <axel.lin at ingics.com>
---
 sound/soc/codecs/rt5677.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/rt5677.c b/sound/soc/codecs/rt5677.c
index 8d70911..83e25a3 100644
--- a/sound/soc/codecs/rt5677.c
+++ b/sound/soc/codecs/rt5677.c
@@ -5133,14 +5133,14 @@ static int rt5677_i2c_probe(struct i2c_client *i2c,
 	if (IS_ERR(rt5677->pow_ldo2)) {
 		ret = PTR_ERR(rt5677->pow_ldo2);
 		dev_err(&i2c->dev, "Failed to request POW_LDO2: %d\n", ret);
-		rt5677->pow_ldo2 = 0;
+		return ret;
 	}
 	rt5677->reset_pin = devm_gpiod_get_optional(&i2c->dev,
 			"realtek,reset", GPIOD_OUT_HIGH);
 	if (IS_ERR(rt5677->reset_pin)) {
 		ret = PTR_ERR(rt5677->reset_pin);
 		dev_err(&i2c->dev, "Failed to request RESET: %d\n", ret);
-		rt5677->reset_pin = 0;
+		return ret;
 	}
 
 	if (rt5677->pow_ldo2 || rt5677->reset_pin) {
-- 
2.1.0





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