1 files changed, 2 insertions, 1 deletions

diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index 197208b3aa2a..3b606d361b52 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -290,7 +290,8 @@ void do_schedule_next_timer(struct siginfo *info)
                 info->si_overrun = timr->it_overrun_last;
         }
 
-        unlock_timer(timr, flags);
+        if (timr)
+                unlock_timer(timr, flags);
 }
 
 int posix_timer_event(struct k_itimer *timr,int si_private)