From: Gerd Hoffmann Date: Mon, 30 May 2016 12:03:26 +0000 (+0200) Subject: virtio-gpu: fix output lookup X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d1e372c4fbdf7de7270bd47a427872dd95973aa6;p=linux-beck.git virtio-gpu: fix output lookup Needed for multihead setups where we can have disabled outputs and therefore plane->crtc can be NULL. Signed-off-by: Gerd Hoffmann Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1464609806-22013-1-git-send-email-kraxel@redhat.com --- diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c index 70b44a2345ab..e50674bccb09 100644 --- a/drivers/gpu/drm/virtio/virtgpu_plane.c +++ b/drivers/gpu/drm/virtio/virtgpu_plane.c @@ -63,11 +63,17 @@ static void virtio_gpu_plane_atomic_update(struct drm_plane *plane, { struct drm_device *dev = plane->dev; struct virtio_gpu_device *vgdev = dev->dev_private; - struct virtio_gpu_output *output = drm_crtc_to_virtio_gpu_output(plane->crtc); + struct virtio_gpu_output *output = NULL; struct virtio_gpu_framebuffer *vgfb; struct virtio_gpu_object *bo; uint32_t handle; + if (plane->state->crtc) + output = drm_crtc_to_virtio_gpu_output(plane->state->crtc); + if (old_state->crtc) + output = drm_crtc_to_virtio_gpu_output(old_state->crtc); + WARN_ON(!output); + if (plane->state->fb) { vgfb = to_virtio_gpu_framebuffer(plane->state->fb); bo = gem_to_virtio_gpu_obj(vgfb->obj);