linux-kernel - Re: [PATCH] serial: of-serial: zero-out struct of_serial

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Date:	Tue, 04 Nov 2014 10:23:49 -0800
From:	Florian Fainelli <f.fainelli@...il.com>
To:	Arnd Bergmann <arnd@...db.de>
CC:	linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
	jslaby@...e.cz, gregkh@...uxfoundation.org,
	devicetree@...r.kernel.org, jingchang.lu@...escale.com,
	gregory.0xf0@...il.com
Subject: Re: [PATCH] serial: of-serial: zero-out struct of_serial_info

On 10/30/2014 02:55 PM, Arnd Bergmann wrote:
> On Thursday 30 October 2014 14:18:33 Florian Fainelli wrote:
>> of_platform_serial_probe() invokes of_platform_serial_setup() with a
>> kmalloc'd struct of_serial_info cookie, which is not much of a problem
>> for most of the struct of_serial_info fields we access but info->clk.
>>
>> On platforms which do not provide a clock phandle for their UART nodes
>> but do provide a 'clock-frequency' property, we basically leave the
>> info->clk variable uninitialized, and this craps out during
>> suspend/resume with oopses, crashes or warnings in the clock code.
>>
>> Fix this by using kzalloc() which also zeroes-out the structure and
>> provides an initialized info->clk member set to NULL.
>>
>> Fixes: 2dea53bf57783 ("serial: of-serial: add PM suspend/resume support")
>> Fixes: e34b9c94b6e8d ("[POWERPC] of_serial: add port type checking")
>> Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
>>
> 
> I thought I'd acked this patch before, maybe someone else sent the same
> one. This is definitely required, so
> 
> Acked-by: Arnd Bergmann <arnd@...db.de>
> 

Thanks, so who's taking that patch? Let me know if I need to resubmit
targeting a specific tree.
--
Florian
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