spinlock: pass 0, not NULL

diff --git a/src/common/Spinlock.h b/src/common/Spinlock.h
index bf204b2a82af913e433ad4707a26828ab01748ed..c0bba996a336afe7db45eddeca484339f8bcc06f 100644 (file)
--- a/src/common/Spinlock.h
+++ b/src/common/Spinlock.h
@@ -58,7 +58,7 @@ private:
 public:
   Spinlock(const char *n, bool ld=true, bool bt=false) :
     name(n), id(-1), lockdep(ld), backtrace(bt), nlock(0) {
-    pthread_spin_init(&_s, NULL);
+    pthread_spin_init(&_s, 0);
     if (lockdep && g_lockdep) _register();
   }
   ~Spinlock() {