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

Gu Zheng
2013-11-06T01:28:51Z

Hi Dan,
On 11/05/2013 07:02 PM, Dan Carpenter wrote:

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

Got it, I just want to gain some comments about this patch.

>
> Also what happened to [PATCH 1/2]?

It fixes the similar issue of fb subsystem.
https://patchwork.kernel.org/patch/3140121/

Regards,
Gu

>
> regards,
> dan carpenter
>
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