Must always unlock mutex after cond timedwait.
diff --git a/cgminer.c b/cgminer.c
index 753d5a3..3c1a3e9 100644
--- a/cgminer.c
+++ b/cgminer.c
@@ -2494,8 +2494,7 @@ int restart_wait(struct timeval *tdiff)
abstime.tv_nsec = then.tv_usec * 1000;
mutex_lock(&restart_lock);
rc = pthread_cond_timedwait(&restart_cond, &restart_lock, &abstime);
- if (!rc)
- mutex_unlock(&restart_lock);
+ mutex_unlock(&restart_lock);
return rc;
}