From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 3 Dec 2014 18:25:42 +0000 (-0700)
Subject: staging: comedi: addi_apci_1500: handle shared interrupt
X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~83^2~606
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d6dc9aa657088e326159df7459713a4b57a17cab;p=pandora-kernel.git

staging: comedi: addi_apci_1500: handle shared interrupt

The interrupt used by this driver is shared. If the board did not cause
the interrupt the driver should return IRQ_NONE so that another driver
can handle it. Fix the interrupt handler so this happens.

Tidy up the interrupt handler a bit.

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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