[patch] i810-tco OOPS

["Randy.Dunlap" <rddunlap@osdlab.org>]

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Please apply to 2.4.7-preX and to 2.4.6-acX.

If one builds a kernel with the i810 tco watchdog driver
but does not have this chipset, the i810tco_getdevice()
function doesn't detect this and still calls pci_read_config_byte(),
which promptly oopses...since the pci_for_each_dev() loop
termination wasn't checked  [i.e., <dev> is non-null after the
loop whether the device was found or not].

-- 
~Randy

[-- Attachment #2: i810found.diff --]
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--- linux/drivers/char/i810-tco.c.org	Mon Jul  2 13:56:41 2001
+++ linux/drivers/char/i810-tco.c	Wed Jul 11 12:11:22 2001
@@ -256,14 +256,19 @@
 	struct pci_dev *dev;
 	u8 val1, val2;
 	u16 badr;
+	int found = 0;
 	/*
 	 *      Find the PCI device
 	 */
 
 	pci_for_each_dev(dev) {
-		if (pci_match_device(i810tco_pci_tbl, dev))
+		if (pci_match_device(i810tco_pci_tbl, dev)) {
+			found = 1;
 			break;
+		}
 	}
+	if (!found)
+		return 0;
 
 	if ((i810tco_pci = dev)) {
 		/*