'nvdev' is freed in rndis_filter_device_remove -> netvsc_device_remove ->
free_netvsc_device, so we mustn't access it, before it's re-created in
rndis_filter_device_add -> netvsc_device_add.
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Reviewed-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
+ memset(&device_info, 0, sizeof(device_info));
+ device_info.ring_size = ring_size;
+ device_info.num_chn = nvdev->num_chn;
+ device_info.max_num_vrss_chns = nvdev->num_chn;
+
ndevctx->start_remove = true;
rndis_filter_device_remove(hdev, nvdev);
ndevctx->start_remove = true;
rndis_filter_device_remove(hdev, nvdev);
+ /* 'nvdev' has been freed in rndis_filter_device_remove() ->
+ * netvsc_device_remove () -> free_netvsc_device().
+ * We mustn't access it before it's re-created in
+ * rndis_filter_device_add() -> netvsc_device_add().
+ */
+
- memset(&device_info, 0, sizeof(device_info));
- device_info.ring_size = ring_size;
- device_info.num_chn = nvdev->num_chn;
- device_info.max_num_vrss_chns = nvdev->num_chn;
rndis_filter_device_add(hdev, &device_info);
out:
rndis_filter_device_add(hdev, &device_info);
out: