linux-kernel - [PATCH 2/2] rtc: interface: Remove unused return value from rtc_timer

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Message-Id: <1429791940-22169-2-git-send-email-k.kozlowski.k@gmail.com>
Date:	Thu, 23 Apr 2015 21:25:40 +0900
From:	Krzysztof Kozlowski <k.kozlowski.k@...il.com>
To:	Alessandro Zummo <a.zummo@...ertech.it>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	rtc-linux@...glegroups.com, linux-kernel@...r.kernel.org
Cc:	Krzysztof Kozlowski <k.kozlowski.k@...il.com>
Subject: [PATCH 2/2] rtc: interface: Remove unused return value from rtc_timer_cancel()

The rtc_timer_cancel() always returns 0 and cannot fail (calls only
other void-returning functions).

Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@...il.com>
---
 drivers/rtc/interface.c | 4 +---
 include/linux/rtc.h     | 2 +-
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index 96268fc11337..31f11ab214a0 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -983,14 +983,12 @@ int rtc_timer_start(struct rtc_device *rtc, struct rtc_timer *timer,
  *
  * Kernel interface to cancel an rtc_timer
  */
-int rtc_timer_cancel(struct rtc_device *rtc, struct rtc_timer *timer)
+void rtc_timer_cancel(struct rtc_device *rtc, struct rtc_timer *timer)
 {
-	int ret = 0;
 	mutex_lock(&rtc->ops_lock);
 	if (timer->enabled)
 		rtc_timer_remove(rtc, timer);
 	mutex_unlock(&rtc->ops_lock);
-	return ret;
 }
 
 
diff --git a/include/linux/rtc.h b/include/linux/rtc.h
index 85b48b29a143..381d12086ab3 100644
--- a/include/linux/rtc.h
+++ b/include/linux/rtc.h
@@ -204,7 +204,7 @@ int rtc_control(rtc_task_t *t, unsigned int cmd, unsigned long arg);
 void rtc_timer_init(struct rtc_timer *timer, void (*f)(void *p), void *data);
 int rtc_timer_start(struct rtc_device *rtc, struct rtc_timer *timer,
 			ktime_t expires, ktime_t period);
-int rtc_timer_cancel(struct rtc_device *rtc, struct rtc_timer *timer);
+void rtc_timer_cancel(struct rtc_device *rtc, struct rtc_timer *timer);
 void rtc_timer_do_work(struct work_struct *work);
 
 static inline bool is_leap_year(unsigned int year)
-- 
2.1.0

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