From d691eb901e044065de10756ea78a5758d457c7fd Mon Sep 17 00:00:00 2001
From: Alessandro Zummo <alessandro.zummo@towertech.it>
Date: Tue, 16 Oct 2007 01:28:15 -0700
Subject: RTC: periodic irq fix

Add kernel/kernel and kernel/user locking for the periodic irq feature of
the rtc class.

PIE ioctls are also supported.

Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/class.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/rtc/class.c')

diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c
index 10ab3b7..4dfdf01 100644
--- a/drivers/rtc/class.c
+++ b/drivers/rtc/class.c
@@ -153,6 +153,7 @@ struct rtc_device *rtc_device_register(const char *name, struct device *dev,
 	mutex_init(&rtc->ops_lock);
 	spin_lock_init(&rtc->irq_lock);
 	spin_lock_init(&rtc->irq_task_lock);
+	init_waitqueue_head(&rtc->irq_queue);
 
 	strlcpy(rtc->name, name, RTC_DEVICE_NAME_SIZE);
 	snprintf(rtc->dev.bus_id, BUS_ID_SIZE, "rtc%d", id);
-- 
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