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SubjectRe: GPIO: Fix probe() error return in gpio driver probes
On Wed, Jan 07, 2009 at 12:56:19PM +0000, ben@fluff.org.uk wrote:
> A number of drivers in drivers/gpio return -ENODEV when confronted
> with missing setup parameters such as the platform data. However,
> returning -ENODEV causes the driver layer to silently ignore the
> driver as it assumes the probe did not find anything and was only
> speculative.
>
> To make life easier to discern why a driver is not being attached,
> change to returning -EINVAL, which is a better description of the
> fact that the driver data was not valid.
>
> Also add a set of dev_dbg() statements to the error paths to provide
> an better explanation of the error as there may be more that one point
> in the driver.

sorry, sent from the wrong email address please ignore.
--
Ben (ben@fluff.org, http://www.fluff.org/)

'a smiley only costs 4 bytes'


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