From: Bhanu Gollapudi <bprakash@broadcom.com>
Date: Fri, 18 Mar 2011 00:13:26 +0000 (-0700)
Subject: [SCSI] bnx2fc: Avoid holding cq_lock when iounmap() is called
X-Git-Tag: v2.6.39-rc1~52^2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=839900c69d5b8a07a4df8e9bd9d1e59a5c556811;p=pandora-kernel.git

[SCSI] bnx2fc: Avoid holding cq_lock when iounmap() is called

With kernel debugging enabled, holding cq_lock when calling
bnx2fc_free_session_resc() which calls iounmap() leads to a warning
stack trace [INFO: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected].
iounmap() grabs a HARDIRQ-unsafe vmlist lock, so holding
spin_lock_bh(cq_lock) when calling iounmap() will trigger the LOCKDEP
warning.  Since cq_lock is required only to guard against deletion, hold
the lock just before freeing the cq.

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---

Reading git-diff-tree failed