tree e91243a2c2256dec2b9f7ad20273c55cdc137358
parent 66883e90eaa0dd55d395c0f9a0c6da5d50809804
author Michael Chan <mchan@broadcom.com> 1267022526 +0000
committer David S. Miller <davem@davemloft.net> 1267179013 -0800

cnic: Fix panic in cnic_iscsi_nl_msg_recv() when device is down.

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 <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>