From: Akihiko Odaki <[email protected]>
Calling mmap() for an empty blob fails with EINVAL, causing QEMU to
emit a spurious warning.
Fixes: e0933d91b1cd ("virtio-gpu: Add virtio_gpu_resource_create_blob")
Signed-off-by: Akihiko Odaki <[email protected]>
Reviewed-by: Marc-André Lureau <[email protected]>
Message-ID: <[email protected]>
---
hw/display/virtio-gpu-udmabuf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/display/virtio-gpu-udmabuf.c b/hw/display/virtio-gpu-udmabuf.c
index 816f52a51457..ba02ba9e8616 100644
--- a/hw/display/virtio-gpu-udmabuf.c
+++ b/hw/display/virtio-gpu-udmabuf.c
@@ -139,7 +139,7 @@ void virtio_gpu_init_udmabuf(struct
virtio_gpu_simple_resource *res)
if (res->iov_cnt == 1 &&
res->iov[0].iov_len < 4096) {
pdata = res->iov[0].iov_base;
- } else {
+ } else if (res->blob_size) {
virtio_gpu_create_udmabuf(res);
if (res->dmabuf_fd < 0) {
return;
--
2.55.0.543.g5ebe2ebe4ea8
