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netvsc: fix hang on netvsc module removal

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The code in netvsc_device_remove was incorrectly calling napi_disable
repeatedly on the same element. This would cause attempts
to remove netvsc module to hang.

Fixes: 2506b1dc4bbe ("netvsc: implement NAPI")
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
stephen hemminger 2017-03-09 15:04:15 -08:00 committed by David S. Miller
parent 0d6dd35784
commit 79cd874c96
1 changed files with 2 additions and 2 deletions
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4
drivers/net/hyperv/netvsc.c
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@ -562,8 +562,8 @@ void netvsc_device_remove(struct hv_device *device)
/* Now, we can close the channel safely */
vmbus_close(device->channel);
for (i = 0; i < VRSS_CHANNEL_MAX; i++)
napi_disable(&net_device->chan_table[0].napi);
for (i = 0; i < net_device->num_chn; i++)
napi_disable(&net_device->chan_table[i].napi);
/* Release all resources */
free_netvsc_device(net_device);