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thermal: hisilicon: Handle return value of clk_prepare_enable

Message ID 3343de0616933425916bbe0dc3359d9e3e3608a1.1496741588.git.arvind.yadav.cs@gmail.com (mailing list archive)
State Accepted
Delegated to: Eduardo Valentin
Headers show

Commit Message

Arvind Yadav June 6, 2017, 9:34 a.m. UTC 
clk_prepare_enable() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/thermal/hisi_thermal.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/thermal/hisi_thermal.c b/drivers/thermal/hisi_thermal.c
index f642966..9c3ce34 100644
--- 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);