From: Arvind Yadav <arvind.yadav.cs@gmail.com>
Date: Tue, 6 Jun 2017 09:34:46 +0000 (+0530)
Subject: thermal: hisilicon: Handle return value of clk_prepare_enable
X-Git-Tag: v4.4.108~7
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=69dd89a1f919df7ab2e38f6f73fca0735d620205;p=thirdparty%2Fkernel%2Fstable.git

thermal: hisilicon: Handle return value of clk_prepare_enable

commit 919054fdfc8adf58c5512fe9872eb53ea0f5525d upstream.

clk_prepare_enable() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Kevin Wangtao <kevin.wangtao@hisilicon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/thermal/hisi_thermal.c b/drivers/thermal/hisi_thermal.c
index 36d07295f8e3a..a56f6cac6fc5e 100644
--- a/drivers/thermal/hisi_thermal.c
+++ b/drivers/thermal/hisi_thermal.c
@@ -389,8 +389,11 @@ static int hisi_thermal_suspend(struct device *dev)
 static int hisi_thermal_resume(struct device *dev)
 {
 	struct hisi_thermal_data *data = dev_get_drvdata(dev);
+	int ret;
 
-	clk_prepare_enable(data->clk);
+	ret = clk_prepare_enable(data->clk);
+	if (ret)
+		return ret;
 
 	data->irq_enabled = true;
 	hisi_thermal_enable_bind_irq_sensor(data);