thermal/drivers/k3_j72xx_bandgap: Simplify k3_thermal_get_temp() function

The k3_thermal_get_temp() function can be simplified to return only
the result of k3_bgp_read_temp() without needing the 'ret' variable
Signed-off-by: Bryan Brattlof <bb@ti.com>
Link: https://lore.kernel.org/r/20221031232702.10339-2-bb@ti.comSigned-off-by: Daniel Lezcano <daniel.lezcano@kernel.org>

drivers/thermal/k3_j72xx_bandgap.c

@@ -249,14 +249,7 @@ static inline int k3_bgp_read_temp(struct k3_thermal_data *devdata,
 /* Get temperature callback function for thermal zone */
 static int k3_thermal_get_temp(struct thermal_zone_device *tz, int *temp)
 {
-	struct k3_thermal_data *data = tz->devdata;
-	int ret = 0;
-
-	ret = k3_bgp_read_temp(data, temp);
-	if (ret)
-		return ret;
-
-	return ret;
+	return k3_bgp_read_temp(tz->devdata, temp);
 }
 
 static const struct thermal_zone_device_ops k3_of_thermal_ops = {