[PATCH 3/5] cyclictest: Make break_thread_id_lock a PI lock

[Sebastian Andrzej Siewior <bigeasy@linutronix.de>]

break_thread_id_lock is acquired at the end once the application is
about to terminate and the lock ensures that only the first thread
writes/ updates the termination reason.

Given its usage there is no requirement to have it as PI lock but having
it as PI will keep the RV-monitor quiet so let's do it.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
 src/cyclictest/cyclictest.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/cyclictest/cyclictest.c b/src/cyclictest/cyclictest.c
index 29ddf2d98bbe1..257b6f1b70cf6 100644
--- a/src/cyclictest/cyclictest.c
+++ b/src/cyclictest/cyclictest.c
@@ -200,7 +200,7 @@ static int smi = 0;
 static pthread_cond_t refresh_on_max_cond = PTHREAD_COND_INITIALIZER;
 static pthread_mutex_t refresh_on_max_lock;
 
-static pthread_mutex_t break_thread_id_lock = PTHREAD_MUTEX_INITIALIZER;
+static pthread_mutex_t break_thread_id_lock;
 static pid_t break_thread_id = 0;
 static uint64_t break_thread_value = 0;
 
@@ -1958,6 +1958,7 @@ int main(int argc, char **argv)
 	pthread_mutexattr_init(&mattr);
 	pthread_mutexattr_setprotocol(&mattr, PTHREAD_PRIO_INHERIT);
 	pthread_mutex_init(&refresh_on_max_lock, &mattr);
+	pthread_mutex_init(&break_thread_id_lock, &mattr);
 
 	/* lock all memory (prevent swapping) */
 	if (lockall)
-- 
2.55.0