[PATCH] drm/exynos: fix nested calls to lock mutex in drm resume

[Kyungmin Park]

add Mr. Dae

On Thu, May 22, 2014 at 11:16 PM, Rahul Sharma <rahul.sharma at samsung.com> wrote:
> Hi Inki,
>
> This is another one which has not got reviewed. Please review.
>
> Regards,
> Rahul Sharma
>
> On 30 April 2014 19:11, Rahul Sharma <rahul.sharma at samsung.com> wrote:
>> From: Rahul Sharma <Rahul.Sharma at samsung.com>
>>
>> While testing S2R on exynos board, system is hanging and
>> rebooting due to nested mutex_lock calls in exynos drm
>> resume callback. Changing the order of the calls is fixing
>> the issue.
>>
>> Signed-off-by: Rahul Sharma <Rahul.Sharma at samsung.com>
>> ---
>> Based on exynos-drm-next branch in Inki Dae's tree.
>>  drivers/gpu/drm/exynos/exynos_drm_drv.c |    2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
>> index bb7dfee..2bb6233 100644
>> --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
>> +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
>> @@ -184,8 +184,8 @@ static int exynos_drm_resume(struct drm_device *dev)
>>                         connector->funcs->dpms(connector, connector->dpms);
>>         }
>>
>> -       drm_helper_resume_force_mode(dev);
>>         drm_modeset_unlock_all(dev);
>> +       drm_helper_resume_force_mode(dev);
>>
>>         return 0;
>>  }
>> --
>> 1.7.9.5
>>
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