linux-kernel - Re: [BUG] drivers/video/sis: deadlock introduced by "fbdev: add mutex for fb

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Message-ID: <alpine.LFD.2.01.0907050756280.3210@localhost.localdomain>
Date:	Sun, 5 Jul 2009 07:56:56 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Paul Mundt <lethal@...ux-sh.org>
cc:	Wu Zhangjin <wuzhangjin@...il.com>, linux-media@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-mips@...ux-mips.org,
	Krzysztof Helt <krzysztof.h1@...pl>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ralf Baechle <ralf@...ux-mips.org>, ???? <yanh@...ote.com>,
	zhangfx <zhangfx@...ote.com>
Subject: Re: [BUG] drivers/video/sis: deadlock introduced by "fbdev: add
 mutex for fb_mmap locking"



On Sun, 5 Jul 2009, Paul Mundt wrote:
>  			break;
>  	fb_info->node = i;
>  	mutex_init(&fb_info->lock);
> -	mutex_init(&fb_info->mm_lock);

Why not "lock" as well?

		Linus
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