Re: [PATCH] of: Fix locking when calling of_get_next_available_child()

Grant Likely
2013-02-13T10:08:58Z

On Mon, 11 Feb 2013 16:26:46 -0700, Stephen Warren <swarren@wwwdotorg.org> wrote:
> On 02/11/2013 03:19 PM, Grant Likely wrote:
> > of_get_next_available_child() obtains the devtree_lock and then calls
> > of_device_is_available() which also attempts to claim the lock. This is
> > obviously incorrect and causes a deadlock on boot. Fix issue by adding
> > an variant of of_device_is_available() which doesn't obtain the lock.
>
> This patch forgets to update __of_device_is_available() to call
> __of_get_property() rather than of_get_property() and hence doesn't
> actually solve the problem.
>
> You might want to make __of_device_is_available() static too.

Okay, I've dropped this patch and replaced it with your version since
you're actually doing better testing that I it would appear. I had to
respin my tree anyway because I messed up a merge of Rob's branch. :-(
Sorry for the noise.

New version of the tree is pushed out.

g.