From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 11 Jul 2012 21:02:38 +0000 (-0700)
Subject: sgi-xp: nested calls to spin_lock_irqsave()
X-Git-Tag: v3.5-rc7~23^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8875408abd935a77b6e1cb11c21c438aa2e7ec75;p=pandora-kernel.git

sgi-xp: nested calls to spin_lock_irqsave()

The code here has a nested spin_lock_irqsave().  It's not needed since
IRQs are already disabled and it causes a problem because it means that
IRQs won't be enabled again at the end.  The second call to
spin_lock_irqsave() will overwrite the value of irq_flags and we can't
restore the proper settings.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Robin Holt <holt@sgi.com>
Cc: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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