From: Jean Delvare <khali@linux-fr.org>
Date: Wed, 14 Oct 2009 05:31:32 +0000 (+0000)
Subject: powerpc/therm_adt746x: Don't access non-existing register
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=99ca177ae4d31c3fbbea7ffb213b9724e4c26233;p=sagit-ice-cold%2Fkernel_xiaomi_msm8998.git

powerpc/therm_adt746x: Don't access non-existing register

The ADT746x don't have any register at sub-address 0, so better use an
existing register for the initial test read.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Colin Leroy <colin@colino.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---

diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c
index 556f0feaa4df..95b676a19be7 100644
--- a/drivers/macintosh/therm_adt746x.c
+++ b/drivers/macintosh/therm_adt746x.c
@@ -387,7 +387,7 @@ static int probe_thermostat(struct i2c_client *client,
 	i2c_set_clientdata(client, th);
 	th->clt = client;
 
-	rc = read_reg(th, 0);
+	rc = read_reg(th, CONFIG_REG);
 	if (rc < 0) {
 		dev_err(&client->dev, "Thermostat failed to read config!\n");
 		kfree(th);