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[WATCHDOG] pcwd_pci.c - spinlock fixes 

the keepalive and get_temperature functions should
use spinlocks also.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
hifive-unleashed-5.1
Wim Van Sebroeck 2007-01-07 21:57:03 +01:00
parent 39e3a0556a
commit 045798b56f
1 changed files with 6 additions and 0 deletions
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6
drivers/char/watchdog/pcwd_pci.c
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@ -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);