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Commit 0d4804b3 authored by Wim Van Sebroeck's avatar Wim Van Sebroeck
Browse files

[WATCHDOG] iTCO_wdt.c - fix ACPI Base register 



The ACPI/PM base I/O address which is the base
for the TCO registers is defined as bits [15:7]
(highest bit is 31, lowest is 0)

The code however only reads bits [14:7]. So
        base_address &= 0x00007f80;
needs to be:
        base_address &= 0x0000ff80;

This patch fixes this.

Signed-off-by: default avatarAte Wijma <ajwijma@hotmail.com>
Signed-off-by: default avatarWim Van Sebroeck <wim@iguana.be>
parent 04bf3b4f

drivers/char/watchdog/iTCO_wdt.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -571,7 +571,7 @@ static int iTCO_wdt_init(struct pci_dev *pdev, const struct pci_device_id *ent, 
	 *      ACPIBASE is bits [15:7] from 0x40-0x43

	 *      ACPIBASE is bits [15:7] from 0x40-0x43

	 */

	 */

	pci_read_config_dword(pdev, 0x40, &base_address);

	pci_read_config_dword(pdev, 0x40, &base_address);

	base_address &= 0x00007f80;

	base_address &= 0x0000ff80;

	if (base_address == 0x00000000) {

	if (base_address == 0x00000000) {

		/* Something's wrong here, ACPIBASE has to be set */

		/* Something's wrong here, ACPIBASE has to be set */

		printk(KERN_ERR PFX "failed to get TCOBASE address\n");

		printk(KERN_ERR PFX "failed to get TCOBASE address\n");