linux-kernel - [ 045/100] hwmon: (pmbus/ltc2978) Use detected chip ID to select supported functionality

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Message-Id: <20130312223127.860019211@linuxfoundation.org>
Date:	Tue, 12 Mar 2013 15:31:30 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Guenter Roeck <linux@...ck-us.net>,
	Jean Delvare <khali@...ux-fr.org>
Subject: [ 045/100] hwmon: (pmbus/ltc2978) Use detected chip ID to select supported functionality

3.8-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Guenter Roeck <linux@...ck-us.net>

commit f366fccd0809f13ba20d64cae3c83f7338c88af7 upstream.

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@...ck-us.net>
Acked-by: Jean Delvare <khali@...ux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/hwmon/pmbus/ltc2978.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/hwmon/pmbus/ltc2978.c
+++ b/drivers/hwmon/pmbus/ltc2978.c
@@ -326,7 +326,7 @@ static int ltc2978_probe(struct i2c_clie
 	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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