[PATCH] virtio-gpu: OUT_OF_MEMORY if failing to create udmabuf

[Dongwon Kim]

Respond with VIRTIO_GPU_RESP_ERR_OUT_OF_MEMORY if it fails to create
an udmabuf for the blob resource.

Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Cc: Vivek Kasireddy <vivek.kasireddy@intel.com>
Signed-off-by: Dongwon Kim <dongwon.kim@intel.com>
---
 hw/display/virtio-gpu.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
index 66cddd94d9..efe66ca7a3 100644
--- a/hw/display/virtio-gpu.c
+++ b/hw/display/virtio-gpu.c
@@ -635,9 +635,11 @@ static void virtio_gpu_do_set_scanout(VirtIOGPU *g,
             if (!virtio_gpu_update_dmabuf(g, scanout_id, res, fb, r)) {
                 virtio_gpu_update_scanout(g, scanout_id, res, r);
                 return;
+            } else {
+                *error = VIRTIO_GPU_RESP_ERR_OUT_OF_MEMORY;
+                return;
             }
         }
-
         data = res->blob;
     } else {
         data = (uint8_t *)pixman_image_get_data(res->image);
-- 
2.34.1