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firewire: ohci: do not bind to Pinnacle cards, avert panic

When firewire-ohci is bound to a Pinnacle MovieBoard, eventually a
"Register access failure" is logged and an interrupt storm or a kernel
panic happens.  https://bugzilla.kernel.org/show_bug.cgi?id=36622

Until this is sorted out (if that is going to succeed at all), let's
just prevent firewire-ohci from touching these devices.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: <stable@kernel.org>
Stefan Richter 14 年之前
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共有 1 个文件被更改,包括 6 次插入0 次删除
  1. 6 0
      drivers/firewire/ohci.c

+ 6 - 0
drivers/firewire/ohci.c

@@ -264,6 +264,7 @@ static char ohci_driver_name[] = KBUILD_MODNAME;
 #define PCI_DEVICE_ID_AGERE_FW643	0x5901
 #define PCI_DEVICE_ID_JMICRON_JMB38X_FW	0x2380
 #define PCI_DEVICE_ID_TI_TSB12LV22	0x8009
+#define PCI_VENDOR_ID_PINNACLE_SYSTEMS	0x11bd
 
 #define QUIRK_CYCLE_TIMER		1
 #define QUIRK_RESET_PACKET		2
@@ -3190,6 +3191,11 @@ static int __devinit pci_probe(struct pci_dev *dev,
 	int i, err;
 	size_t size;
 
+	if (dev->vendor == PCI_VENDOR_ID_PINNACLE_SYSTEMS) {
+		dev_err(&dev->dev, "Pinnacle MovieBoard is not yet supported\n");
+		return -ENOSYS;
+	}
+
 	ohci = kzalloc(sizeof(*ohci), GFP_KERNEL);
 	if (ohci == NULL) {
 		err = -ENOMEM;