watchdog: sc520_wdt: Remove unused variable

Variable "dummy" is not used anywhere in the function wdt_config().
This patch removes this variable.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/watchdog/sc520_wdt.c b/drivers/watchdog/sc520_wdt.c
index f353e18b1a82..1cfd3f6a13d5 100644
--- a/drivers/watchdog/sc520_wdt.c
+++ b/drivers/watchdog/sc520_wdt.c
@@ -158,12 +158,11 @@ static void wdt_timer_ping(unsigned long data)
 
 static void wdt_config(int writeval)
 {
-        __u16 dummy;
         unsigned long flags;
 
         /* buy some time (ping) */
         spin_lock_irqsave(&wdt_spinlock, flags);
-        dummy = readw(wdtmrctl);        /* ensure write synchronization */
+        readw(wdtmrctl);        /* ensure write synchronization */
         writew(0xAAAA, wdtmrctl);
         writew(0x5555, wdtmrctl);
         /* unlock WDT = make WDT configuration register writable one time */