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-rw-r--r--drivers/hwmon/applesmc.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index dca47a591baf..e30186236588 100644
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -590,6 +590,11 @@ static ssize_t applesmc_light_show(struct device *dev,
}
ret = applesmc_read_key(LIGHT_SENSOR_LEFT_KEY, buffer, data_length);
+ /* newer macbooks report a single 10-bit bigendian value */
+ if (data_length == 10) {
+ left = be16_to_cpu(*(__be16 *)(buffer + 6)) >> 2;
+ goto out;
+ }
left = buffer[2];
if (ret)
goto out;