releases/4.14.44/hv_netvsc-fix-error-unwind-handling-if-vmbus_open-fails.patch

   1 From foo@baz Tue May 22 20:10:42 CEST 2018
   2 From: Stephen Hemminger <stephen@networkplumber.org>
   3 Date: Mon, 14 May 2018 15:32:11 -0700
   4 Subject: hv_netvsc: fix error unwind handling if vmbus_open fails
   5
   6 From: Stephen Hemminger <stephen@networkplumber.org>
   7
   8 [ Commit fcfb4a00d1e514e8313277a01ef919de1113025b upstream. ]
   9
  10 Need to delete NAPI association if vmbus_open fails.
  11
  12 Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
  13 Signed-off-by: David S. Miller <davem@davemloft.net>
  14 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  15 ---
  16  drivers/net/hyperv/netvsc.c |    2 +-
  17  1 file changed, 1 insertion(+), 1 deletion(-)
  18
  19 --- a/drivers/net/hyperv/netvsc.c
  20 +++ b/drivers/net/hyperv/netvsc.c
  21 @@ -1288,7 +1288,6 @@ struct netvsc_device *netvsc_device_add(
  22                          net_device->chan_table);
  23
  24         if (ret != 0) {
  25 -               netif_napi_del(&net_device->chan_table[0].napi);
  26                 netdev_err(ndev, "unable to open channel: %d\n", ret);
  27                 goto cleanup;
  28         }
  29 @@ -1321,6 +1320,7 @@ close:
  30         vmbus_close(device->channel);
  31
  32  cleanup:
  33 +       netif_napi_del(&net_device->chan_table[0].napi);
  34         free_netvsc_device(&net_device->rcu);
  35
  36         return ERR_PTR(ret);