[PATCH v2 2/2] watchdog: add wdt shutdown callback to disable wdt if enabled

Daniel Kurtz djkurtz at chromium.org
Tue Aug 11 00:38:55 PDT 2015


On Tue, Aug 11, 2015 at 12:42 PM, Guenter Roeck <linux at roeck-us.net> wrote:
> On 08/10/2015 09:28 PM, Daniel Kurtz wrote:
>>
>> Hi Guenter, Matthias,
>>
>> On Fri, Jul 24, 2015 at 1:37 AM, Matthias Brugger
>> <matthias.bgg at gmail.com> wrote:
>>>
>>> On Thursday, July 23, 2015 01:49:11 PM Eddie Huang wrote:
>>>>
>>>> From: Greta Zhang <greta.zhang at mediatek.com>
>>>>
>>>> Without .shutdown(), watchdog might reset the system during power off.
>>>> For example, if watchdog's timeout is set to 30s, then it is reset to
>>>> zero by mtk_wdt_ping(). During power off, no app will ping watchdog,
>>>> but watchdog is still running and may trigger reset.
>>>>
>>>> Signed-off-by: Greta Zhang <greta.zhang at mediatek.com>
>>>> Signed-off-by: Eddie Huang <eddie.huang at mediatek.com>
>>>> ---
>>>>   drivers/watchdog/mtk_wdt.c | 9 +++++++++
>>>>   1 file changed, 9 insertions(+)
>>>
>>>
>>> Acked-by: Matthias Brugger <matthias.bgg at gmail.com>
>>
>>
>> is the plan to land these two patches via Guenter's watchdog tree [0]?
>> [0] git://www.linux-watchdog.org/linux-watchdog.git
>>
> That is Wim's tree, and Wim is the maintainer ;-).

No wonder!  Thanks for cluing me in.

> I have the patches queued in my tree [1], and I plan to send a pull request
> to Wim this week or early next week.

Great!

Thanks,
-Dan

> Guenter
>
> ---
> [1]
> https://git.kernel.org/cgit/linux/kernel/git/groeck/linux-staging.git/log/?h=watchdog-next
>



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