From 31c6bcc4d86075c62ffa5a8431bda827df513124 Mon Sep 17 00:00:00 2001
From: Ian Martin <ian@locicontrols.com>
Date: Tue, 10 May 2016 13:30:40 -0400
Subject: [PATCH] xtimer: return after xtimer_spin() when within an ISR

---
 sys/xtimer/xtimer.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/xtimer/xtimer.c b/sys/xtimer/xtimer.c
index 8918ae86f7..97549435bb 100644
--- a/sys/xtimer/xtimer.c
+++ b/sys/xtimer/xtimer.c
@@ -39,6 +39,7 @@ void _xtimer_sleep(uint32_t offset, uint32_t long_offset)
     if (irq_is_in()) {
         assert(!long_offset);
         xtimer_spin(offset);
+        return;
     }
 
     xtimer_t timer;