[PATCH] powerpc: remove useless spinlock from mpc83xx watchdog

[Kumar Gala]

Since we can only open the watchdog once having a spinlock to protect
multiple access is pointless.

Signed-off-by: Kumar Gala <galak at kernel.crashing.org>

---
commit 8852c088c0624f5534b08a769b5887c42a211694
tree 04ad05af51efb90604ff86af48197b6b7b45f77a
parent 1161d00ace361999d5b98bbe3082da4c8d457ba3
author Kumar Gala <galak at kernel.crashing.org> Thu, 19 Jan 2006 01:03:09 -0600
committer Kumar Gala <galak at kernel.crashing.org> Thu, 19 Jan 2006 01:03:09 -0600

 drivers/char/watchdog/mpc83xx_wdt.c |    5 -----
 1 files changed, 0 insertions(+), 5 deletions(-)

diff --git a/drivers/char/watchdog/mpc83xx_wdt.c b/drivers/char/watchdog/mpc83xx_wdt.c
index 5d6f506..b310144 100644
--- a/drivers/char/watchdog/mpc83xx_wdt.c
+++ b/drivers/char/watchdog/mpc83xx_wdt.c
@@ -57,15 +57,12 @@ static int prescale = 1;
 static unsigned int timeout_sec;
 
 static unsigned long wdt_is_open;
-static spinlock_t wdt_spinlock;
 
 static void mpc83xx_wdt_keepalive(void)
 {
 	/* Ping the WDT */
-	spin_lock(&wdt_spinlock);
 	out_be16(&wd_base->swsrr, 0x556c);
 	out_be16(&wd_base->swsrr, 0xaa39);
-	spin_unlock(&wdt_spinlock);
 }
 
 static ssize_t mpc83xx_wdt_write(struct file *file, const char __user *buf,
@@ -184,8 +181,6 @@ static int __devinit mpc83xx_wdt_probe(s
 		"mode:%s timeout=%d (%d seconds)\n",
 		reset ? "reset":"interrupt", timeout, timeout_sec);
 
-	spin_lock_init(&wdt_spinlock);
-
 	return 0;
 
 err_unmap: