From: Ron Mercer <ron.mercer@qlogic.com>
Date: Sat, 11 Dec 2010 11:06:50 +0000 (+0000)
Subject: qlge: Fix deadlock when cancelling worker.
X-Git-Tag: v2.6.37-rc6~14^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4d7b6b5d247aa71ea27709b9eac1ba6e752fbe87;p=pandora-kernel.git

qlge: Fix deadlock when cancelling worker.

Removing usage of rtnl_lock() to protect firmware interface registers.
These registers are accessed in some worker threads and can create a
deadlock if rtnl_lock is taken by upper layers while the worker is still
pending.
We remove rtnl_lock and use a driver mutex just while mailboxes are
accessed.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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