diff options
Diffstat (limited to 'include/linux/virtio_config.h')
| -rw-r--r-- | include/linux/virtio_config.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h index 169c7d367fac..b3e1d30c765b 100644 --- a/include/linux/virtio_config.h +++ b/include/linux/virtio_config.h @@ -329,6 +329,8 @@ static inline bool virtio_get_shm_region(struct virtio_device *vdev, struct virtio_shm_region *region, u8 id) { + if (!region->len) + return false; if (!vdev->config->get_shm_region) return false; return vdev->config->get_shm_region(vdev, region, id); |