---

yaml
---
r: 295240
b: refs/heads/master
c: ce9f650
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b4f0b880c8d7eb225b79dec663780b4dcdea7fbc
+refs/heads/master: ce9f650636d310e4c8febc821b0038e9918a12db

trunk/drivers/rtc/rtc-twl.c

@@ -176,6 +176,10 @@ static int set_rtc_irq_bit(unsigned char bit)
 	unsigned char val;
 	int ret;
 
+	/* if the bit is set, return from here */
+	if (rtc_irq_bits & bit)
+		return 0;
+
 	val = rtc_irq_bits | bit;
 	val &= ~BIT_RTC_INTERRUPTS_REG_EVERY_M;
 	ret = twl_rtc_write_u8(val, REG_RTC_INTERRUPTS_REG);
@@ -193,6 +197,10 @@ static int mask_rtc_irq_bit(unsigned char bit)
 	unsigned char val;
 	int ret;
 
+	/* if the bit is clear, return from here */
+	if (!(rtc_irq_bits & bit))
+		return 0;
+
 	val = rtc_irq_bits & ~bit;
 	ret = twl_rtc_write_u8(val, REG_RTC_INTERRUPTS_REG);
 	if (ret == 0)