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authorstephen hemminger <stephen@networkplumber.org>2017-07-19 21:53:14 +0300
committerDavid S. Miller <davem@davemloft.net>2017-07-20 08:20:05 +0300
commita5e1ec3833211bc0136649a89ee3a29355c7b43b (patch)
tree352454bd448ffec43b108382eda37270529270bb /drivers/net/hyperv
parent79e8cbe7a789a0863cc6cd874872b4dd63ec5947 (diff)
downloadlinux-a5e1ec3833211bc0136649a89ee3a29355c7b43b.tar.xz
netvsc: change order of steps in setting queues
This fixes the error unwind logic for incorrect number of queues. If netif_set_real_num_XX_queues failed then rndis_filter_device_add would have been called twice. Since input arguments are already ranged checked this is a hypothetical only problem, not possible in actual code. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/hyperv')
-rw-r--r--drivers/net/hyperv/netvsc_drv.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index e8e82a6a4b1a..91637336d1fb 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -724,17 +724,15 @@ static int netvsc_set_queues(struct net_device *net, struct hv_device *dev,
device_info.ring_size = ring_size;
device_info.max_num_vrss_chns = num_chn;
- ret = rndis_filter_device_add(dev, &device_info);
- if (ret)
- return ret;
-
ret = netif_set_real_num_tx_queues(net, num_chn);
if (ret)
return ret;
ret = netif_set_real_num_rx_queues(net, num_chn);
+ if (ret)
+ return ret;
- return ret;
+ return rndis_filter_device_add(dev, &device_info);
}
static int netvsc_set_channels(struct net_device *net,