1 files changed, 1 insertions, 0 deletions

diff --git a/kernel/rtmutex-tester.c b/kernel/rtmutex-tester.c
index 015fc633c96c..e3055ba69159 100644
--- a/kernel/rtmutex-tester.c
+++ b/kernel/rtmutex-tester.c
@@ -260,6 +260,7 @@ static int test_func(void *data)
         int ret;
 
         current->flags |= PF_MUTEX_TESTER;
+        set_freezable();
         allow_signal(SIGHUP);
 
         for(;;) {