[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20110801232055.041433517@clark.kroah.org>
Date: Mon, 01 Aug 2011 16:18:59 -0700
From: Greg KH <gregkh@...e.de>
To: linux-kernel@...r.kernel.org, stable@...nel.org
Cc: stable-review@...nel.org, torvalds@...ux-foundation.org,
akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
Steven Toth <stoth@...nellabs.com>,
Kusanagi Kouichi <slash@...auone-net.jp>,
Jarod Wilson <jarod@...hat.com>,
Andy Walls <awalls@...metrocast.net>,
Mauro Carvalho Chehab <mchehab@...hat.com>
Subject: [44/70] [media] Revert "V4L/DVB: cx23885: Enable Message Signaled Interrupts(MSI)"
2.6.39-stable review patch. If anyone has any objections, please let us know.
------------------
From: Jarod Wilson <jarod@...hat.com>
commit d7515b8866b60c9526d2d7af37ebcd16c3c5ed97 upstream.
This reverts commit e38030f3ff02684eb9e25e983a03ad318a10a2ea.
MSI flat-out doesn't work right on cx2388x devices yet. There are now
multiple reports of cards that hard-lock systems when MSI is enabled,
including my own HVR-1250 when trying to use its built-in IR receiver.
Disable MSI and it works just fine. Similar for another user's HVR-1270.
Issues have also been reported with the HVR-1850 when MSI is enabled,
and the 1850 behavior sounds similar to an as-yet-undiagnosed issue I've
seen with an 1800.
CC: Steven Toth <stoth@...nellabs.com>
CC: Kusanagi Kouichi <slash@...auone-net.jp>
Signed-off-by: Jarod Wilson <jarod@...hat.com>
Acked-by: Andy Walls <awalls@...metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
drivers/media/video/cx23885/cx23885-core.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
--- a/drivers/media/video/cx23885/cx23885-core.c
+++ b/drivers/media/video/cx23885/cx23885-core.c
@@ -2060,12 +2060,8 @@ static int __devinit cx23885_initdev(str
goto fail_irq;
}
- 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);
+ 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);
@@ -2114,7 +2110,6 @@ static void __devexit cx23885_finidev(st
/* unregister stuff */
free_irq(pci_dev->irq, dev);
- pci_disable_msi(pci_dev);
cx23885_dev_unregister(dev);
v4l2_device_unregister(v4l2_dev);
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists