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Commit 424c3f05 authored by Tomeu Vizoso's avatar Tomeu Vizoso Committed by Gerd Hoffmann
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drm/virtio: Don't return invalid caps on timeout 



If the wait timeouts, the caps are probably invalid and we shouldn't be
passing them to userspace.

Signed-off-by: default avatarTomeu Vizoso <tomeu.vizoso@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20171127142126.25765-1-tomeu.vizoso@collabora.com


Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
parent c2925bde

drivers/gpu/drm/virtio/virtgpu_ioctl.c

+2 −0
Original line number Diff line number Diff line
@@ -518,6 +518,8 @@ static int virtio_gpu_get_caps_ioctl(struct drm_device *dev, 


	ret = wait_event_timeout(vgdev->resp_wq,

				 atomic_read(&cache_ent->is_valid), 5 * HZ);

	if (!ret)

		return -EBUSY;



	ptr = cache_ent->caps_cache;