[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/pc87413_wdt.c b/drivers/watchdog/pc87413_wdt.c
index 3d3deae0d64b..15e4f8887a9e 100644
--- a/drivers/watchdog/pc87413_wdt.c
+++ b/drivers/watchdog/pc87413_wdt.c
@@ -61,7 +61,7 @@ static unsigned long timer_enabled = 0;  /* is the timer enabled? */
 
 static char expect_close;                /* is the close expected? */
 
-static spinlock_t io_lock;               /* to guard the watchdog from io races */
+static DEFINE_SPINLOCK(io_lock);/* to guard the watchdog from io races */
 
 static int nowayout = WATCHDOG_NOWAYOUT;
 
@@ -561,8 +561,6 @@ static int __init pc87413_init(void)
 {
         int ret;
 
-        spin_lock_init(&io_lock);
-
         printk(KERN_INFO PFX "Version " VERSION " at io 0x%X\n", WDT_INDEX_IO_PORT);
 
         /* request_region(io, 2, "pc87413"); */