[PATCH] thermal: Fix test of unsigned in thermal_cooling_device_cur_state_store()

[Roel Kluin]

state is unsigned long so the test did not work.

Signed-off-by: Roel Kluin <roel.kluin@xxxxxxxxx>
---
Found using coccinelle: http://coccinelle.lip6.fr/

Is this the best way to fix this?

diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c
index 6f8d8f9..800e0c5 100644
--- a/drivers/thermal/thermal_sys.c
+++ b/drivers/thermal/thermal_sys.c
@@ -374,7 +374,7 @@ thermal_cooling_device_cur_state_store(struct device *dev,
 	if (!sscanf(buf, "%ld\n", &state))
 		return -EINVAL;
 
-	if (state < 0)
+	if ((long)state < 0)
 		return -EINVAL;
 
 	result = cdev->ops->set_cur_state(cdev, state);
--
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