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authorMichael S. Tsirkin <mst@redhat.com>2016-12-05 21:39:30 +0100
committerMichael S. Tsirkin <mst@redhat.com>2016-12-15 05:59:17 +0100
commit3373755a415c9c8024d26cf32fd812a8cdb82541 (patch)
tree0364871bf2e6055337e56587a994761f120a1df6 /drivers/gpu
parentdrm/virtio: fix lock context imbalance (diff)
downloadlinux-3373755a415c9c8024d26cf32fd812a8cdb82541.tar.xz
linux-3373755a415c9c8024d26cf32fd812a8cdb82541.zip
drm/virtio: annotate virtio_gpu_queue_ctrl_buffer_locked
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>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_vq.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index abfc54a18f1a..43ea0dc957d2 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -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;