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

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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>
This commit is contained in:
Jean Delvare 2009-10-14 05:31:32 +00:00 committed by Benjamin Herrenschmidt
parent cd01570717
commit 99ca177ae4
1 changed files with 1 additions and 1 deletions
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2
drivers/macintosh/therm_adt746x.c
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@ -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);