[PATCH 05/11] drm/virtio: unlock object array on errors

[Chia-I Wu]

We don't propagate erros to the callers.  We have to unlock object
arrays on errors.

Signed-off-by: Chia-I Wu <olvaffe at gmail.com>
---
 drivers/gpu/drm/virtio/virtgpu_vq.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 5815c7d50dc20..1e27f4c09341e 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -370,8 +370,11 @@ static void virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev,
 		if (is_vmalloc_addr(vbuf->data_buf)) {
 			sgt = vmalloc_to_sgt(vbuf->data_buf, vbuf->data_size,
 					     &outcnt);
-			if (!sgt)
+			if (!sgt) {
+				if (fence && vbuf->objs)
+					virtio_gpu_array_unlock_resv(vbuf->objs);
 				return;
+			}
 			vout = sgt->sgl;
 		} else {
 			sg_init_one(&sg, vbuf->data_buf, vbuf->data_size);
-- 
2.25.0.341.g760bfbb309-goog