linux-kernel - [patch] Extcon: Arizona: unlock on an error in arizona

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Date:	Wed, 11 Jul 2012 09:36:02 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	MyungJoo Ham <myungjoo.ham@...sung.com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	Chanwoo Choi <cw00.choi@...sung.com>, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [patch] Extcon: Arizona: unlock on an error in arizona_micdet()

Smatch complains about this.  I don't have a way to test this, but it
does look like we should unlock on error here.

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index b068bc9..4782884 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -154,6 +154,7 @@ static irqreturn_t arizona_micdet(int irq, void *data)
 	ret = regmap_read(arizona->regmap, ARIZONA_MIC_DETECT_3, &val);
 	if (ret != 0) {
 		dev_err(arizona->dev, "Failed to read MICDET: %d\n", ret);
+		mutex_unlock(&info->lock);
 		return IRQ_NONE;
 	}
 
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