Commit b1c84927 authored Sep 04, 2014 by Dan Carpenter Committed by David S. Miller Sep 05, 2014

hyperv: NULL dereference on error



We try to call free_netvsc_device(net_device) when "net_device" is NULL.
It leads to an Oops.

Fixes: f90251c8 ('hyperv: Increase the buffer length for netvsc_channel_cb()')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent a77f9a28

drivers/net/hyperv/netvsc.c

+2 −4

Original line number	Diff line number	Diff line
		@@ -1054,10 +1054,8 @@ int netvsc_device_add(struct hv_device device, void additional_info)
		struct net_device *ndev;

		net_device = alloc_net_device(device);
		if (!net_device) {
		ret = -ENOMEM;
		goto cleanup;
		}
		if (!net_device)
		return -ENOMEM;

		net_device->ring_size = ring_size;