Re: [PATCH linux-next 1/4] infiniband/ipoib: fix possible NULL pointer dereference in ipoib_get_iflink

From: Nicolas Dichtel
Date: Tue Apr 14 2015 - 12:46:38 EST


Le 14/04/2015 18:30, Erez Shitrit a Ãcrit :
On Tue, Apr 14, 2015 at 6:20 PM, Honggang Li <honli@xxxxxxxxxx> wrote:
[snip]
This will make parent interface to return 0 instead of its own ifindex.
I would suggest write something like that:

+ /* parent interface */
+ if (!test_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags))
+ return dev->ifindex;
+
+ /* child/vlan interface */
+ if (!priv->parent)
+ return -1;
'return 0' here.
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