Subject: Re: [PATCH net-next 3/6] cnic: Fix panic in cnic_iscsi_nl_msg_recv() when device is down.

From: David Miller <[email-masked]>
Date: Fri, 26 Feb 2010 02:11:24 -0800 (PST)

From: "Michael Chan" <[email-masked]>
Date: Wed, 24 Feb 2010 16:42:06 -0800

> Some data structures are freed when the device is down and it will
> crash if an ISCSI netlink message is received.  Add RCU protection
> to prevent this.  In the shutdown path, ulp_ops[CNIC_ULP_L4] is
> assigned NULL and rcu_synchronized before freeing the data
> structures.
> 
> Signed-off-by: Michael Chan <[email-masked]>

Applied.