linux-kernel - Re: [RESEND PATCH 2/2] staging/olpc_docn: reorder the lock sequence to avoid potential dead lock

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Message-ID: <20131105110242.GQ26669@mwanda>
Date:	Tue, 5 Nov 2013 14:02:42 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Gu Zheng <guz.fnst@...fujitsu.com>
Cc:	jfrederich@...il.com, dsd@...top.org, jon.nettleton@...il.com,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	devel@...verdev.osuosl.org, Tomi Valkeinen <tomi.valkeinen@...com>,
	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [RESEND PATCH 2/2] staging/olpc_docn: reorder the lock sequence
 to avoid potential dead lock

On Tue, Nov 05, 2013 at 06:01:00PM +0800, Gu Zheng wrote:
> The lock sequence of dcon_blank_fb(fb_info->lock ---> console_lock) is against
> with the one of console_callback(console_lock ---> fb_info->lock), it'll
> lead to a potential dead lock, so reorder the lock sequence of dcon_blank_fb
> to avoid the potential dead lock.
> 
> Signed-off-by: Gu Zheng <guz.fnst@...fujitsu.com>

Relax, Greg isn't taking new patches for another three weeks because the
merge window is open.

Also what happened to [PATCH 1/2]?

regards,
dan carpenter

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