On Sunday 09 March 2008, Jean Delvare wrote:
> Hi David,
>
> On Sat, 8 Mar 2008 13:12:36 -0800, David Brownell wrote:
> > The only issue I have is that code which the driver probe()
> > calls may expect client->driver to be set, but it won't be...
> >
> > While I'd rather see client->driver vanish, in this case I'd
> > just suggest leaving the early assignment, and nulling it out
> > on error (instead of assigning it on success).
>
> Oh well, that's exactly what Hans' patch did originally, I changed it
> to make the code more simple, but if you think it is better that way,
> I'll revert this change of mine. Here you go:
Yeah, this has much less chance to break something inadvertently.
- Dave
> From: Hans Verkuil <[EMAIL PROTECTED]>
>
> Ensure that client->driver is set to NULL if the probe() returns an
> error (this keeps client->driver and client->dev.driver in sync).
>
> Signed-off-by: Hans Verkuil <[EMAIL PROTECTED]>
> Signed-off-by: Jean Delvare <[EMAIL PROTECTED]>
> ---
> drivers/i2c/i2c-core.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> --- linux-2.6.25-rc4.orig/drivers/i2c/i2c-core.c 2008-03-08
> 17:57:52.000000000 +0100
> +++ linux-2.6.25-rc4/drivers/i2c/i2c-core.c 2008-03-09 11:03:53.000000000
> +0100
> @@ -90,12 +90,16 @@ static int i2c_device_probe(struct devic
> {
> struct i2c_client *client = to_i2c_client(dev);
> struct i2c_driver *driver = to_i2c_driver(dev->driver);
> + int status;
>
> if (!driver->probe)
> return -ENODEV;
> client->driver = driver;
> dev_dbg(dev, "probe\n");
> - return driver->probe(client);
> + status = driver->probe(client);
> + if (status)
> + client->driver = NULL;
> + return status;
> }
>
> static int i2c_device_remove(struct device *dev)
>
>
>
> --
> Jean Delvare
>
_______________________________________________
i2c mailing list
[email protected]
http://lists.lm-sensors.org/mailman/listinfo/i2c
