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Commit 045798b5 authored by Wim Van Sebroeck's avatar Wim Van Sebroeck
Browse files

[WATCHDOG] pcwd_pci.c - spinlock fixes 



the keepalive and get_temperature functions should
use spinlocks also.

Signed-off-by: default avatarWim Van Sebroeck <wim@iguana.be>
parent 39e3a055

drivers/char/watchdog/pcwd_pci.c

+6 −0
Original line number Diff line number Diff line
@@ -298,7 +298,9 @@ static int pcipcwd_stop(void) 
static int pcipcwd_keepalive(void)

{

	/* Re-trigger watchdog by writing to port 0 */

	spin_lock(&pcipcwd_private.io_lock);

	outb_p(0x42, pcipcwd_private.io_addr);	/* send out any data */

	spin_unlock(&pcipcwd_private.io_lock);



	if (debug >= DEBUG)

		printk(KERN_DEBUG PFX "Watchdog keepalive signal send\n");
@@ -385,7 +387,9 @@ static int pcipcwd_get_temperature(int *temperature) 
	if (!pcipcwd_private.supports_temp)

		return -ENODEV;



	spin_lock(&pcipcwd_private.io_lock);

	*temperature = inb_p(pcipcwd_private.io_addr);

	spin_unlock(&pcipcwd_private.io_lock);



	/*

	 * Convert celsius to fahrenheit, since this was
@@ -814,6 +818,8 @@ static int __init pcipcwd_init_module(void) 
static void __exit pcipcwd_cleanup_module(void)

{

	pci_unregister_driver(&pcipcwd_driver);



	printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");

}



module_init(pcipcwd_init_module);