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i2c-gpio: Fix adapter number 

It turns out that platform_device.id is a "u32" so testing it for being
nonnegative is useless when setting up an i2c bitbang device.  Instead,
do what the platform_bus code does and test it against the value "-1". 

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
David Brownell 2007-09-09 22:29:13 +02:00 committed by Jean Delvare
parent b21010ed64
commit 9a3180e70e
1 changed files with 1 additions and 1 deletions
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2
drivers/i2c/busses/i2c-gpio.c
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@ -147,7 +147,7 @@ static int __init i2c_gpio_probe(struct platform_device *pdev)
* The reason to do so is to avoid sysfs names that only make
* sense when there are multiple adapters.
*/
adap->nr = pdev->id >= 0 ? pdev->id : 0;
adap->nr = (pdev->id != -1) ? pdev->id : 0;
ret = i2c_bit_add_numbered_bus(adap);
if (ret)
goto err_add_bus;