[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, 4 deletions

diff --git a/drivers/watchdog/mpc83xx_wdt.c b/drivers/watchdog/mpc83xx_wdt.c
index a0bf95fb976..6369f569517 100644
--- a/drivers/watchdog/mpc83xx_wdt.c
+++ b/drivers/watchdog/mpc83xx_wdt.c
@@ -56,7 +56,7 @@ static int prescale = 1;
 static unsigned int timeout_sec;
 
 static unsigned long wdt_is_open;
-static spinlock_t wdt_spinlock;
+static DEFINE_SPINLOCK(wdt_spinlock);
 
 static void mpc83xx_wdt_keepalive(void)
 {
@@ -185,9 +185,6 @@ static int __devinit mpc83xx_wdt_probe(struct platform_device *dev)
         printk(KERN_INFO "WDT driver for MPC83xx initialized. "
                 "mode:%s timeout=%d (%d seconds)\n",
                 reset ? "reset":"interrupt", timeout, timeout_sec);
-
-        spin_lock_init(&wdt_spinlock);
-
         return 0;
 
 err_unmap: