[PATCH] drm/amd/amdgpu/amdgpu_drv.c: Replace drm_modeset_lock_all with drm_modeset_lock

[Matthew Wilcox]

On Thu, Apr 22, 2021 at 05:59:51PM +0200, Fabio M. De Francesco wrote:
> -		drm_modeset_lock_all(drm_dev);
> -
>  		drm_for_each_crtc(crtc, drm_dev) {
> +			drm_modeset_lock(&crtc->mutex, NULL);
>  			if (crtc->state->active) {
>  				ret = -EBUSY;
> -				break;
>  			}
> +			drm_modeset_unlock(&crtc->mutex);
> +			if (ret < 0)
> +				break;
>  		}
>  
> -		drm_modeset_unlock_all(drm_dev);
> -

I might remove the {} around ret = -EBUSY, but this is good.

Reviewed-by: Matthew Wilcox (Oracle) <willy at infradead.org>