linux-kernel - Re: [PATCH] avr32: fix deadlock when reading clock list in debugfs

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Message-ID: <1302700665.10549.4.camel@hcegtvedt>
Date:	Wed, 13 Apr 2011 15:17:45 +0200
From:	Hans-Christian Egtvedt <hans-christian.egtvedt@...el.com>
To:	Ole Henrik Jahren <olehenja@...mni.ntnu.no>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] avr32: fix deadlock when reading clock list in debugfs

On Sun, 2011-03-06 at 20:42 +0100, Ole Henrik Jahren wrote: 
> When writing out /sys/kernel/debug/at32ap_clk, clock list lock is being
> held while clk_get() is called. clk_get() attempts to take the same
> lock, which results in deadlock. Introduce and call lock free version,
> __clk_get(), instead.
> 
> Signed-off-by: Ole Henrik Jahren <olehenja@...mni.ntnu.no>
> Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@...el.com>

Thanks for this fix, added to the AVR32 tree.

Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@...el.com>

<snipp patch>

-- 
Hans-Christian Egtvedt

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