simple_spin: fix compiler warnings

Signed-off-by: Colin McCabe <colin.mccabe@dreamhost.com>

diff --git a/src/test/simple_spin.cc b/src/test/simple_spin.cc
index e7752658e744a413eba5763c98f1668aba70fcde..63e09a453eadecd337e5088cad7d781ac57bcabc 100644 (file)
--- a/src/test/simple_spin.cc
+++ b/src/test/simple_spin.cc
@@ -19,6 +19,7 @@ static void* mythread(void *v)
     counter++;
     simple_spin_unlock(&lock);
   }
+  return NULL;
 }
 
 TEST(SimpleSpin, Test1)
@@ -34,5 +35,5 @@ TEST(SimpleSpin, Test1)
   ASSERT_EQ(ret, 0);
   ret = pthread_join(thread2, NULL);
   ASSERT_EQ(ret, 0);
-  ASSERT_EQ(counter, 2000000);
+  ASSERT_EQ(counter, 2000000U);
 }