[PATCH 4.9 256/271] Input: sun4i-ts - add a check for devm_thermal_zone_of_sensor_register

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From: Chuhong Yuan <hslester96@xxxxxxxxx>

commit 97e24b095348a15ec08c476423c3b3b939186ad7 upstream.

The driver misses a check for devm_thermal_zone_of_sensor_register().
Add a check to fix it.

Fixes: e28d0c9cd381 ("input: convert sun4i-ts to use devm_thermal_zone_of_sensor_register")
Signed-off-by: Chuhong Yuan <hslester96@xxxxxxxxx>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/input/touchscreen/sun4i-ts.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

--- a/drivers/input/touchscreen/sun4i-ts.c
+++ b/drivers/input/touchscreen/sun4i-ts.c
@@ -246,6 +246,7 @@ static int sun4i_ts_probe(struct platfor
 	struct device *dev = &pdev->dev;
 	struct device_node *np = dev->of_node;
 	struct device *hwmon;
+	struct thermal_zone_device *thermal;
 	int error;
 	u32 reg;
 	bool ts_attached;
@@ -365,7 +366,10 @@ static int sun4i_ts_probe(struct platfor
 	if (IS_ERR(hwmon))
 		return PTR_ERR(hwmon);
 
-	devm_thermal_zone_of_sensor_register(ts->dev, 0, ts, &sun4i_ts_tz_ops);
+	thermal = devm_thermal_zone_of_sensor_register(ts->dev, 0, ts,
+						       &sun4i_ts_tz_ops);
+	if (IS_ERR(thermal))
+		return PTR_ERR(thermal);
 
 	writel(TEMP_IRQ_EN(1), ts->base + TP_INT_FIFOC);
 





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