diff options
| -rw-r--r-- | virtio_gpu/virtgpu_kms.c | 2 | ||||
| -rw-r--r-- | virtio_gpu/virtgpu_vq.c | 10 |
2 files changed, 9 insertions, 3 deletions
diff --git a/virtio_gpu/virtgpu_kms.c b/virtio_gpu/virtgpu_kms.c index 01d6f62..88b16df 100644 --- a/virtio_gpu/virtgpu_kms.c +++ b/virtio_gpu/virtgpu_kms.c @@ -97,8 +97,10 @@ static void virtio_gpu_get_capsets(struct virtio_gpu_device *vgdev, vgdev->capsets[i].id > 0, 5 * HZ); if (ret == 0) { DRM_ERROR("timed out waiting for cap set %d\n", i); + spin_lock(&vgdev->display_info_lock); kfree(vgdev->capsets); vgdev->capsets = NULL; + spin_unlock(&vgdev->display_info_lock); return; } DRM_INFO("cap set %d: id %d, max-version %d, max-size %d\n", diff --git a/virtio_gpu/virtgpu_vq.c b/virtio_gpu/virtgpu_vq.c index 93b32ef..1b7f4e6 100644 --- a/virtio_gpu/virtgpu_vq.c +++ b/virtio_gpu/virtgpu_vq.c @@ -572,9 +572,13 @@ static void virtio_gpu_cmd_get_capset_info_cb(struct virtio_gpu_device *vgdev, int i = le32_to_cpu(cmd->capset_index); spin_lock(&vgdev->display_info_lock); - vgdev->capsets[i].id = le32_to_cpu(resp->capset_id); - vgdev->capsets[i].max_version = le32_to_cpu(resp->capset_max_version); - vgdev->capsets[i].max_size = le32_to_cpu(resp->capset_max_size); + if (vgdev->capsets) { + vgdev->capsets[i].id = le32_to_cpu(resp->capset_id); + vgdev->capsets[i].max_version = le32_to_cpu(resp->capset_max_version); + vgdev->capsets[i].max_size = le32_to_cpu(resp->capset_max_size); + } else { + DRM_ERROR("invalid capset memory."); + } spin_unlock(&vgdev->display_info_lock); wake_up(&vgdev->resp_wq); } |