[PATCH] drm/radeon: take the mode_config mutex when dealing with hpds

[Dave Airlie]

On 19 May 2015 at 12:27, Michel Dänzer <michel at daenzer.net> wrote:
> On 19.05.2015 01:24, Alex Deucher wrote:
>>
>> @@ -96,10 +98,12 @@ static void radeon_dp_work_func(struct work_struct *work)
>>       struct drm_connector *connector;
>>
>>       /* this should take a mutex */
>> +     mutex_lock(&mode_config->mutex);
>
> This comment can be removed?

I have vague memories of not doing this, because bad things happened.

so keep an eye out for lockdep traces.

Dave.