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SubjectRe: [PATCH] i2c: Fix return value check
Hi Akinobu,

On Thu, 19 Oct 2006 12:28:01 +0900, Akinobu Mita wrote:
> On Wed, Oct 18, 2006 at 04:54:50PM +0200, Jean Delvare wrote:
> > Patch looks correct, however class devices are going away soon, and
> > this patch will conflict with Greg's work:
> > http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/patches/driver-class/i2c-dev-device.patch
> >
> > So your patch should apply on top of Greg's, if still needed after his
> > changes. It might even be later folded into Greg's patch to make things
> > easier to handle.
>
> I made the patch on top of i2c-dev-device.patch
>
> Subject: i2c: Fix return value check
>
> device_create() returns error code as pointer on failures.
> This patch checks the return value of device_create() by using IS_ERR().
>
> Cc: Greg Kroah-Hartman <gregkh@suse.de>
> Cc: Jean Delvare <khali@linux-fr.org>
> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
>
> drivers/i2c/i2c-dev.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> Index: work-fault-inject/drivers/i2c/i2c-dev.c
> ===================================================================
> --- work-fault-inject.orig/drivers/i2c/i2c-dev.c
> +++ work-fault-inject/drivers/i2c/i2c-dev.c
> @@ -417,8 +417,8 @@ static int i2cdev_attach_adapter(struct
> i2c_dev->dev = device_create(i2c_dev_class, &adap->dev,
> MKDEV(I2C_MAJOR, adap->nr),
> "i2c-%d", adap->nr);
> - if (!i2c_dev->dev) {
> - res = -ENODEV;
> + if (IS_ERR(i2c_dev->dev)) {
> + res = PTR_ERR(i2c_dev->dev);
> goto error;
> }
> res = device_create_file(i2c_dev->dev, &dev_attr_name);

Great, thanks. I've this in my tree now so it won't be lost.

Greg, do you want to fold this into i2c-dev-device.patch?

Thanks,
--
Jean Delvare
-
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