From: Michael Chan <mchan@broadcom.com>
Date: Fri, 14 Aug 2009 15:49:46 +0000 (+0000)
Subject: cnic: Fix locking in start/stop calls.
X-Git-Tag: v2.6.31-rc7~27^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=681dbd710779e8b8d5bae926f6b11f30df70638b;p=pandora-kernel.git

cnic: Fix locking in start/stop calls.

The slow path ulp_start and ulp_stop calls to the bnx2i driver
are sleepable calls and therefore should not be protected using
rcu_read_lock.  Fix it by using mutex and setting a bit during
these calls.  cnic_unregister_device() will now wait for the bit
to clear 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>
---

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