[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>
diff --git a/drivers/char/watchdog/pcwd_pci.c b/drivers/char/watchdog/pcwd_pci.c
index 059ac9f..95ddcd8 100644
--- a/drivers/char/watchdog/pcwd_pci.c
+++ b/drivers/char/watchdog/pcwd_pci.c
@@ -298,7 +298,9 @@
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 @@
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 void __exit pcipcwd_cleanup_module(void)
{
pci_unregister_driver(&pcipcwd_driver);
+
+ printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");
}
module_init(pcipcwd_init_module);