From: Maxim Levitsky <maximlevitsky@gmail.com>
Date: Sun, 4 Nov 2007 22:34:23 +0000 (-0300)
Subject: V4L/DVB (6668): Fix theoretical races between IRQ handler and .suspend/resume
X-Git-Tag: v2.6.25-rc1~1235^2~305
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3203cb86d22c63504f8368151029bf9dad014ddb;p=pandora-kernel.git

V4L/DVB (6668): Fix theoretical races between IRQ handler and .suspend/resume

*dev->insuspend = 1 should be set before synchronize_irq
 *ACK interrupts after synchronize_irq, to make sure there aren't
 pending interrupts.
 *Add barrier before we restart interrupts so the handler will 100%
 see the dev->insuspend

Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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