From: Alexander Gordeev <lasaine@lvk.cs.msu.su>
Date: Tue, 25 Jan 2011 23:07:16 +0000 (-0800)
Subject: parport: make lockdep happy with waitlist_lock
X-Git-Tag: v2.6.38-rc3~48
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cbeb4b7ad5346516d2ee726395eb5722b25a0a01;p=pandora-kernel.git

parport: make lockdep happy with waitlist_lock

parport_unregister_device() should never be used when interrupts are
enabled in hardware and irq handler is registered so there is no need to
disable interrupts when using waitlist_lock.  But there is no way to
explain this subtle semantics to lockdep analyzer.

So disable interrupts here too to simplify things.  The price is
negligible.

Signed-off-by: Alexander Gordeev <lasaine@lvk.cs.msu.su>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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