From e8b022c310d806ed7d72f804c05dad0db9847b58 Mon Sep 17 00:00:00 2001
From: Aksel Skauge Mellbye <aksel.mellbye@silabs.com>
Date: Thu, 17 Sep 2015 08:23:11 +0200
Subject: [PATCH] [EFM32] Fix bug in rtc_free_real

---
 .../targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/rtc_api.c    | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/rtc_api.c b/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/rtc_api.c
index d1ea76eafd..d02878a41d 100644
--- a/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/rtc_api.c
+++ b/libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/rtc_api.c
@@ -136,10 +136,10 @@ void rtc_free(void)
 void rtc_free_real(uint32_t flags)
 {
     /* Clear use flag */
-    flags &= ~flags;
+    useflags &= ~flags;
 
     /* Disable the RTC if it was inited and is no longer in use by anyone. */
-    if (rtc_inited && (flags == 0)) {
+    if (rtc_inited && (useflags == 0)) {
         NVIC_DisableIRQ(RTC_IRQn);
         RTC_Reset();
         CMU_ClockEnable(cmuClock_RTC, false);