thermal: underflow bug in imx_set_trip_temp()

We recently changed this from unsigned long to int so it introduced an
underflow bug.

Fixes: 17e8351a7739 ('thermal: consistently use int for temperatures')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
index acd1c7868735..c8fe3cac2e0e 100644
--- a/drivers/thermal/imx_thermal.c
+++ b/drivers/thermal/imx_thermal.c
@@ -288,7 +288,7 @@ static int imx_set_trip_temp(struct thermal_zone_device *tz, int trip,
         if (trip == IMX_TRIP_CRITICAL)
                 return -EPERM;
 
-        if (temp > IMX_TEMP_PASSIVE)
+        if (temp < 0 || temp > IMX_TEMP_PASSIVE)
                 return -EINVAL;
 
         data->temp_passive = temp;