linux-kernel - [PATCH v4] ASoC: tlv320adcx140: Fix accessing uninitialized adcx140->dev

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Date:   Tue, 1 Sep 2020 15:57:35 +0200
From:   Camel Guo <camel.guo@...s.com>
To:     <lgirdwood@...il.com>, <broonie@...nel.org>, <perex@...ex.cz>,
        <tiwai@...e.com>, <dmurphy@...com>
CC:     <alsa-devel@...a-project.org>, <linux-kernel@...r.kernel.org>,
        <kernel@...s.com>, Camel Guo <camelg@...s.com>,
        Camel Guo <camel.guo@...s.com>
Subject: [PATCH v4] ASoC: tlv320adcx140: Fix accessing uninitialized adcx140->dev

From: Camel Guo <camelg@...s.com>

In adcx140_i2c_probe, adcx140->dev is accessed before its
initialization. This commit fixes this bug.

Fixes: 689c7655b50c ("ASoC: tlv320adcx140: Add the tlv320adcx140 codec driver family")
Acked-by: Dan Murphy <dmurphy@...com>
Signed-off-by: Camel Guo <camel.guo@...s.com>
---
 v4:
   - Add Acked-By from Dan
 v3:
   - Add Fixes tag
 v2:
   - Fix typo

 sound/soc/codecs/tlv320adcx140.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/tlv320adcx140.c b/sound/soc/codecs/tlv320adcx140.c
index 5cd50d841177..7ae6ec374be3 100644
--- a/sound/soc/codecs/tlv320adcx140.c
+++ b/sound/soc/codecs/tlv320adcx140.c
@@ -980,6 +980,8 @@ static int adcx140_i2c_probe(struct i2c_client *i2c,
 	if (!adcx140)
 		return -ENOMEM;
 
+	adcx140->dev = &i2c->dev;
+
 	adcx140->gpio_reset = devm_gpiod_get_optional(adcx140->dev,
 						      "reset", GPIOD_OUT_LOW);
 	if (IS_ERR(adcx140->gpio_reset))
@@ -1007,7 +1009,7 @@ static int adcx140_i2c_probe(struct i2c_client *i2c,
 			ret);
 		return ret;
 	}
-	adcx140->dev = &i2c->dev;
+
 	i2c_set_clientdata(i2c, adcx140);
 
 	return devm_snd_soc_register_component(&i2c->dev,
-- 
2.20.1