From f366fccd0809f13ba20d64cae3c83f7338c88af7 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Thu, 21 Feb 2013 10:49:40 -0800
Subject: hwmon: (pmbus/ltc2978) Use detected chip ID to select supported
 functionality

We read the chip ID from the chip, use it to determine if the chip ID provided
to the driver is correct, and report it if wrong. We should also use the
correct chip ID to select supported functionality.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: stable@vger.kernel.org # 3.2+
Acked-by: Jean Delvare <khali@linux-fr.org>

diff --git a/drivers/hwmon/pmbus/ltc2978.c b/drivers/hwmon/pmbus/ltc2978.c
index cc29a7e..a58de38 100644
--- a/drivers/hwmon/pmbus/ltc2978.c
+++ b/drivers/hwmon/pmbus/ltc2978.c
@@ -326,7 +326,7 @@ static int ltc2978_probe(struct i2c_client *client,
 	data->temp_max = 0x7c00;
 	data->temp2_max = 0x7c00;
 
-	switch (id->driver_data) {
+	switch (data->id) {
 	case ltc2978:
 		info->read_word_data = ltc2978_read_word_data;
 		info->pages = 8;
-- 
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