[PATCH 4.14 023/165] hv_netvsc: fix error unwind handling if vmbus_open fails

From: Greg Kroah-Hartman
Date: Thu May 24 2018 - 04:59:30 EST


4.14-stable review patch. If anyone has any objections, please let me know.

------------------

From: Stephen Hemminger <stephen@xxxxxxxxxxxxxxxxxx>

[ Commit fcfb4a00d1e514e8313277a01ef919de1113025b upstream. ]

Need to delete NAPI association if vmbus_open fails.

Signed-off-by: Stephen Hemminger <sthemmin@xxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/hyperv/netvsc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -1288,7 +1288,6 @@ struct netvsc_device *netvsc_device_add(
net_device->chan_table);

if (ret != 0) {
- netif_napi_del(&net_device->chan_table[0].napi);
netdev_err(ndev, "unable to open channel: %d\n", ret);
goto cleanup;
}
@@ -1321,6 +1320,7 @@ close:
vmbus_close(device->channel);

cleanup:
+ netif_napi_del(&net_device->chan_table[0].napi);
free_netvsc_device(&net_device->rcu);

return ERR_PTR(ret);