From 8f3f3eb7a264630a73c23cecfa2af2235775e09a Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 5 Aug 2015 10:45:15 -0700
Subject: [PATCH] staging: comedi: me4000: only enable PLX interrupt if we have
 and irq

Currently me4000_reset() always enables the PLX interrupt. Move the
enable of the interrupt into me4000_auto_attach() and only do the
enable if we actually have and irq.

Make sure the PLX interrupt is disabled in me4000_reset() before we
try to request the irq.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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