netdev - Re: [PATCH v2] infiniband: make sure the src net is infiniband when create new link

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Message-Id: <20140103.203924.418673249346450315.davem@davemloft.net>
Date:	Fri, 03 Jan 2014 20:39:24 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	liuhangbin@...il.com
Cc:	netdev@...r.kernel.org, wpan@...hat.com
Subject: Re: [PATCH v2] infiniband: make sure the src net is infiniband
 when create new link

From: Hangbin Liu <liuhangbin@...il.com>
Date: Fri,  3 Jan 2014 11:33:45 +0800

> When we create a new infiniband link with uninfiniband device, e.g. `ip link
> add link em1 type ipoib pkey 0x8001`. We will get a NULL pointer dereference
> cause other dev like Ethernet don't have struct ib_device.
> 
> The code path is:
> rtnl_newlink
>   |-- ipoib_new_child_link
>         |-- __ipoib_vlan_add
>               |-- ipoib_set_dev_features
>                     |-- ib_query_device
> 
> Fix this bug by make sure the src net is infiniband when create new link.
> 
> Signed-off-by: Hangbin Liu <liuhangbin@...il.com>

Applied, thank you.
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