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 f642966..9c3ce34 100644 (file)
--- a/drivers/thermal/hisi_thermal.c
+++ b/drivers/thermal/hisi_thermal.c
@@ -397,8 +397,11 @@ 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);