1 files changed, 6 insertions, 3 deletions

diff --git a/drivers/thermal/thermal-generic-adc.c b/drivers/thermal/thermal-generic-adc.c
index e22fc60ad36d..deb244f12de4 100644
--- a/drivers/thermal/thermal-generic-adc.c
+++ b/drivers/thermal/thermal-generic-adc.c
@@ -29,6 +29,9 @@ static int gadc_thermal_adc_to_temp(struct gadc_thermal_info *gti, int val)
         int temp, temp_hi, temp_lo, adc_hi, adc_lo;
         int i;
 
+        if (!gti->lookup_table)
+                return val;
+
         for (i = 0; i < gti->nlookup_table; i++) {
                 if (val >= gti->lookup_table[2 * i + 1])
                         break;
@@ -81,9 +84,9 @@ static int gadc_thermal_read_linear_lookup_table(struct device *dev,
 
         ntable = of_property_count_elems_of_size(np, "temperature-lookup-table",
                                                  sizeof(u32));
-        if (ntable < 0) {
-                dev_err(dev, "Lookup table is not provided\n");
-                return ntable;
+        if (ntable <= 0) {
+                dev_notice(dev, "no lookup table, assuming DAC channel returns milliCelcius\n");
+                return 0;
         }
 
         if (ntable % 2) {