recovering ownerdead robust mutex must reset recursive lock count

[musl] / src / thread / pthread_mutex_trylock.c

diff --git a/src/thread/pthread_mutex_trylock.c b/src/thread/pthread_mutex_trylock.c
index fb27797..db784a7 100644 (file)
--- a/src/thread/pthread_mutex_trylock.c
+++ b/src/thread/pthread_mutex_trylock.c
@@ -43,6 +43,7 @@ int pthread_mutex_trylock(pthread_mutex_t *m)
        self->robust_list.head = &m->_m_next;
        self->robust_list.pending = 0;
        if (own) {
+               m->_m_count = 0;
                m->_m_type += 8;
                return EOWNERDEAD;
        }