[patch -next] hyperv: NULL dereference on error
Dan Carpenter
dan.carpenter at oracle.com
Thu Sep 4 11:11:23 UTC 2014
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 at oracle.com>
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 5b5644a..977984b 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -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;
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