linux-kernel - [PATCH] [32/275] staging: comedi: ni_labpc: Use shared IRQ for PCMCIA card

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Date:	Wed, 30 Mar 2011 14:04:27 -0700 (PDT)
From:	Andi Kleen <andi@...stfloor.org>
To:	abbotti@....co.uk, gregkh@...e.de, ak@...ux.intel.com,
	linux-kernel@...r.kernel.org, stable@...nel.org,
	tim.bird@...sony.com
Subject: [PATCH] [32/275] staging: comedi: ni_labpc: Use shared IRQ for PCMCIA card

2.6.35-longterm review patch.  If anyone has any objections, please let me know.

------------------
From: Ian Abbott <abbotti@....co.uk>

commit d1ce318496f5943d2cc5e20171fc383a59a1421f upstream.

The ni_labpc driver module only requests a shared IRQ for PCI devices,
requesting a non-shared IRQ for non-PCI devices.
As this module is also used by the ni_labpc_cs module for certain
National Instruments PCMCIA cards, it also needs to request a shared IRQ
for PCMCIA devices, otherwise you get a IRQ mismatch with the CardBus
controller.

Signed-off-by: Ian Abbott <abbotti@....co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
Signed-off-by: Andi Kleen <ak@...ux.intel.com>

---
 drivers/staging/comedi/drivers/ni_labpc.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Index: linux-2.6.35.y/drivers/staging/comedi/drivers/ni_labpc.c
===================================================================
--- linux-2.6.35.y.orig/drivers/staging/comedi/drivers/ni_labpc.c	2011-03-29 22:51:55.939291822 -0700
+++ linux-2.6.35.y/drivers/staging/comedi/drivers/ni_labpc.c	2011-03-29 23:02:58.861329307 -0700
@@ -571,7 +571,8 @@
 	/* grab our IRQ */
 	if (irq) {
 		isr_flags = 0;
-		if (thisboard->bustype == pci_bustype)
+		if (thisboard->bustype == pci_bustype
+		    || thisboard->bustype == pcmcia_bustype)
 			isr_flags |= IRQF_SHARED;
 		if (request_irq(irq, labpc_interrupt, isr_flags,
 				driver_labpc.driver_name, dev)) {
--
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