commit e38030f3ff02684eb9e25e983a03ad318a10a2ea
author Kusanagi Kouichi <slash@ac.auone-net.jp> Sat Feb 06 02:45:33 2010 -0300
committer Mauro Carvalho Chehab <mchehab@redhat.com> Mon Aug 02 15:34:59 2010 -0300
tree 016340c5da972714624590ce968accb5dc6ab05a
parent b48592e496e55e4e3e6e7f27d5ba3a229a1db7a6

V4L/DVB: cx23885: Enable Message Signaled Interrupts(MSI)

Signed-off-by: Kusanagi Kouichi <slash@ac.auone-net.jp>
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/cx23885/cx23885-core.c

diff --git a/drivers/media/video/cx23885/cx23885-core.c b/drivers/media/video/cx23885/cx23885-core.c
index 161ae73..ff76f64 100644
--- a/drivers/media/video/cx23885/cx23885-core.c
+++ b/drivers/media/video/cx23885/cx23885-core.c
@@ -1953,8 +1953,12 @@
 		goto fail_irq;
 	}
 
-	err = request_irq(pci_dev->irq, cx23885_irq,
-			  IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
+	if (!pci_enable_msi(pci_dev))
+		err = request_irq(pci_dev->irq, cx23885_irq,
+				  IRQF_DISABLED, dev->name, dev);
+	else
+		err = request_irq(pci_dev->irq, cx23885_irq,
+				  IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
 	if (err < 0) {
 		printk(KERN_ERR "%s: can't get IRQ %d\n",
 		       dev->name, pci_dev->irq);
@@ -2000,6 +2004,7 @@
 
 	/* unregister stuff */
 	free_irq(pci_dev->irq, dev);
+	pci_disable_msi(pci_dev);
 
 	cx23885_dev_unregister(dev);
 	v4l2_device_unregister(v4l2_dev);