[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, 3 deletions

diff --git a/drivers/watchdog/wafer5823wdt.c b/drivers/watchdog/wafer5823wdt.c
index 950905d3c39f..9e368091f799 100644
--- a/drivers/watchdog/wafer5823wdt.c
+++ b/drivers/watchdog/wafer5823wdt.c
@@ -45,7 +45,7 @@
 
 static unsigned long wafwdt_is_open;
 static char expect_close;
-static spinlock_t wafwdt_lock;
+static DEFINE_SPINLOCK(wafwdt_lock);
 
 /*
  *      You must set these - there is no sane way to probe for this board.
@@ -252,8 +252,6 @@ static int __init wafwdt_init(void)
 
         printk(KERN_INFO "WDT driver for Wafer 5823 single board computer initialising.\n");
 
-        spin_lock_init(&wafwdt_lock);
-
         if (timeout < 1 || timeout > 255) {
                 timeout = WD_TIMO;
                 printk (KERN_INFO PFX "timeout value must be 1<=x<=255, using %d\n",