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drm/virtio: annotate virtio_gpu_queue_ctrl_buffer_locked

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virtio_gpu_queue_ctrl_buffer_locked is called with ctrlq.qlock taken, it
releases and acquires this lock.  This causes a sparse warning.  Add
appropriate annotations for sparse context checking.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2016-12-05 22:39:30 +02:00
parent f862e60f8d
commit 3373755a41
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/virtio/virtgpu_vq.c
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@ -297,6 +297,8 @@ void virtio_gpu_dequeue_cursor_func(struct work_struct *work)
static int virtio_gpu_queue_ctrl_buffer_locked(struct virtio_gpu_device *vgdev,
struct virtio_gpu_vbuffer *vbuf)
__releases(&vgdev->ctrlq.qlock)
__acquires(&vgdev->ctrlq.qlock)
{
struct virtqueue *vq = vgdev->ctrlq.vq;
struct scatterlist *sgs[3], vcmd, vout, vresp;