[WATCHDOG] spin_lock_init() fixes

Some watchdog drivers initialize global spinlocks in module's init function
which is tolerable, but some do it in PCI probe function.  So, switch to
static initialization to fix theoretical bugs and, more importantly, stop
giving people bad examples.

Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/watchdog/wdt_pci.c b/drivers/watchdog/wdt_pci.c
index 6bfe0e29dc1..1355608683e 100644
--- a/drivers/watchdog/wdt_pci.c
+++ b/drivers/watchdog/wdt_pci.c
@@ -74,7 +74,7 @@
 static int dev_count;
 
 static struct semaphore open_sem;
-static spinlock_t wdtpci_lock;
+static DEFINE_SPINLOCK(wdtpci_lock);
 static char expect_close;
 
 static int io;
@@ -607,7 +607,6 @@ static int __devinit wdtpci_init_one (struct pci_dev *dev,
         }
 
         sema_init(&open_sem, 1);
-        spin_lock_init(&wdtpci_lock);
 
         irq = dev->irq;
         io = pci_resource_start (dev, 2);