linux-kernel - Re: [PATCH] of: Fix locking when calling of_get_next_available

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Date:	Mon, 11 Feb 2013 16:26:46 -0700
From:	Stephen Warren <swarren@...dotorg.org>
To:	Grant Likely <grant.likely@...retlab.ca>
CC:	devicetree-discuss@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	Rob Herring <robherring2@...il.com>
Subject: Re: [PATCH] of: Fix locking when calling of_get_next_available_child()

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.
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