tree fd7f72c1b92ddde327fb72235a256539ac193b8c
parent 681dbd710779e8b8d5bae926f6b11f30df70638b
author Michael Chan <mchan@broadcom.com> 1250264987 +0000
committer David S. Miller <davem@davemloft.net> 1250387447 -0700

cnic: Fix locking in init/exit calls.

The slow path ulp_init and ulp_exit calls to the bnx2i driver
are sleepable calls and therefore should not be protected using
rcu_read_lock.  Fix it by using mutex and refcount during these
calls.  cnic_unregister_driver() will now wait for the refcount
to go to zero before completing the call.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>