From 79cd874c96b38694fb2b4ee3850f6fbbc3015439 Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Thu, 9 Mar 2017 15:04:15 -0800 Subject: [PATCH] netvsc: fix hang on netvsc module removal 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 Signed-off-by: David S. Miller --- drivers/net/hyperv/netvsc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c index 0e0c757c1681..8f9aeec2ce0f 100644 --- a/drivers/net/hyperv/netvsc.c +++ b/drivers/net/hyperv/netvsc.c @@ -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); -- 2.20.1