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

[Rahul Sharma]

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
>