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watchdog: sc520_wdt: Remove unused variable

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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>
This commit is contained in:
Alexander Shiyan 2014-02-15 13:22:49 +04:00 committed by Wim Van Sebroeck
parent c303ca8765
commit a9ba8376e9
1 changed files with 1 additions and 2 deletions
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3
drivers/watchdog/sc520_wdt.c
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@ -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 */