The raw temperature data was never clamped to SPRD_THM_RAW_DATA_LOW or SPRD_THM_RAW_DATA_HIGH because the return value of clamp() was not used. Fix this by assigning the clamped value to 'rawdata'.
Casting SPRD_THM_RAW_DATA_LOW and SPRD_THM_RAW_DATA_HIGH to u32 is also redundant and can be removed.
Cc: stable@vger.kernel.org Fixes: 554fdbaf19b1 ("thermal: sprd: Add Spreadtrum thermal driver support") Signed-off-by: Thorsten Blum thorsten.blum@linux.dev --- drivers/thermal/sprd_thermal.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/thermal/sprd_thermal.c b/drivers/thermal/sprd_thermal.c index e546067c9621..f7fa83b2428e 100644 --- a/drivers/thermal/sprd_thermal.c +++ b/drivers/thermal/sprd_thermal.c @@ -178,7 +178,7 @@ static int sprd_thm_sensor_calibration(struct device_node *np, static int sprd_thm_rawdata_to_temp(struct sprd_thermal_sensor *sen, u32 rawdata) { - clamp(rawdata, (u32)SPRD_THM_RAW_DATA_LOW, (u32)SPRD_THM_RAW_DATA_HIGH); + rawdata = clamp(rawdata, SPRD_THM_RAW_DATA_LOW, SPRD_THM_RAW_DATA_HIGH);
/* * According to the thermal datasheet, the formula of converting