Re: sysfs/udev broken in 2.6.23-rc1 [input, i2c, ...] (Was: sysfs/udev broken in latest git?)

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On Wed, 2007-07-25 at 17:11 -0700, Greg KH wrote:
> On Wed, Jul 25, 2007 at 09:58:08AM +0200, Cornelia Huck wrote:
> > On Wed, 25 Jul 2007 02:19:18 +0200,
> > "Kay Sievers" <[email protected]> wrote:
> > 
> > > > >> Removing the dev->parent->bus check fixes it:
> > > 
> > > Yes, let's remove the check, I will check now if we possibly need to
> > > fix more than this or only the block-device patch.
> > 
> > It seems this is the only place we check for dev->parent->bus in the
> > current git tree.
> > 
> > Patch below.
> 
> Thanks for figuring this out, I'll add this to my tree.
> 
> So what is the input layer doing so differently from everyone else here?
> Is it correct?  (sorry, am at a conference this week, so can't dig into
> it as much as I would like to until Friday...)

It was the only place where we stacked (had a hierarchy of) class
devices. We got a class device being a child of another class device.

We never did anything like that and it was the reason to go for a
unified tree at /sys/devices/ instead of putting small hierarchy trees
all over the place, which can never be changed later, as they are the
defined entry points into the device tree.

Kay

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