diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/hyperv/netvsc_drv.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index 2d3cdb026a99..bc05c895d958 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -859,15 +859,22 @@ static int netvsc_change_mtu(struct net_device *ndev, int mtu) if (ret) goto out; + 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); + /* '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(). + */ + ndev->mtu = mtu; - 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: |