linux-kernel - [PATCH] mfd: lp873x: Remove unused mutex lock from struct lp873x

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Date:   Tue,  6 Sep 2016 08:59:55 +0800
From:   Axel Lin <axel.lin@...ics.com>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     Keerthy <j-keerthy@...com>, linux-kernel@...r.kernel.org,
        Axel Lin <axel.lin@...ics.com>
Subject: [PATCH] mfd: lp873x: Remove unused mutex lock from struct lp873x

The mutex is not used, so remove it.

Signed-off-by: Axel Lin <axel.lin@...ics.com>
---
 drivers/mfd/lp873x.c       | 2 --
 include/linux/mfd/lp873x.h | 1 -
 2 files changed, 3 deletions(-)

diff --git a/drivers/mfd/lp873x.c b/drivers/mfd/lp873x.c
index 9af064c..873c608 100644
--- a/drivers/mfd/lp873x.c
+++ b/drivers/mfd/lp873x.c
@@ -53,8 +53,6 @@ static int lp873x_probe(struct i2c_client *client,
 		return ret;
 	}
 
-	mutex_init(&lp873->lock);
-
 	ret = regmap_read(lp873->regmap, LP873X_REG_OTP_REV, &otpid);
 	if (ret) {
 		dev_err(lp873->dev, "Failed to read OTP ID\n");
diff --git a/include/linux/mfd/lp873x.h b/include/linux/mfd/lp873x.h
index 83b1bd7..edbec83 100644
--- a/include/linux/mfd/lp873x.h
+++ b/include/linux/mfd/lp873x.h
@@ -263,7 +263,6 @@ enum lp873x_regulator_id {
 struct lp873x {
 	struct device *dev;
 	u8 rev;
-	struct mutex lock;	/* lock guarding the data structure */
 	struct regmap *regmap;
 };
 #endif /* __LINUX_MFD_LP873X_H */
-- 
2.7.4