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: f90251c8a6d0 ('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>
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 5b5644a..977984bc 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -1054,10 +1054,8 @@
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;