From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 11 Nov 2013 14:23:50 +0000 (+0800)
Subject: i2c: wmt: add missing clk_disable_unprepare() on error
X-Git-Tag: v3.13-rc1~43^2~4
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2dc9688a106886db7191d30f30ffd61fde827efd;p=karo-tx-linux.git

i2c: wmt: add missing clk_disable_unprepare() on error

Add the missing clk_disable_unprepare() before return
from wmt_i2c_reset_hardware() in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org # 3.11+
---

diff --git a/drivers/i2c/busses/i2c-wmt.c b/drivers/i2c/busses/i2c-wmt.c
index c65da3d913a0..4bf9507cd1a1 100644
--- a/drivers/i2c/busses/i2c-wmt.c
+++ b/drivers/i2c/busses/i2c-wmt.c
@@ -349,6 +349,7 @@ static int wmt_i2c_reset_hardware(struct wmt_i2c_dev *i2c_dev)
 	err = clk_set_rate(i2c_dev->clk, 20000000);
 	if (err) {
 		dev_err(i2c_dev->dev, "failed to set clock = 20Mhz\n");
+		clk_disable_unprepare(i2c_dev->clk);
 		return err;
 	}