From 9d9c0019e750b6ef2f6d941e40a4b959c736653c Mon Sep 17 00:00:00 2001
From: Stefan Liebler <stli@linux.vnet.ibm.com>
Date: Fri, 12 Dec 2014 11:13:09 +0100
Subject: Get rid of warning comparision will always evaluate as true

---
 nptl/tst-mutex6.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'nptl/tst-mutex6.c')

diff --git a/nptl/tst-mutex6.c b/nptl/tst-mutex6.c
index 292e3bf..9c11a20 100644
--- a/nptl/tst-mutex6.c
+++ b/nptl/tst-mutex6.c
@@ -21,6 +21,7 @@
 #include <stdio.h>
 #include <unistd.h>
 #include <errno.h>
+#include <stdbool.h>
 
 
 #ifndef ATTR
@@ -28,6 +29,9 @@ pthread_mutexattr_t *attr;
 # define ATTR attr
 #endif
 
+#ifndef ATTR_NULL
+# define ATTR_NULL (ATTR == NULL)
+#endif
 
 static int
 do_test (void)
@@ -35,7 +39,7 @@ do_test (void)
   pthread_mutex_t m;
 
   int e = pthread_mutex_init (&m, ATTR);
-  if (ATTR != NULL && e == ENOTSUP)
+  if (!ATTR_NULL && e == ENOTSUP)
     {
       puts ("cannot support selected type of mutexes");
       e = pthread_mutex_init (&m, NULL);
@@ -46,7 +50,7 @@ do_test (void)
       return 1;
     }
 
-  if (ATTR != NULL && pthread_mutexattr_destroy (ATTR) != 0)
+  if (!ATTR_NULL && pthread_mutexattr_destroy (ATTR) != 0)
     {
       puts ("mutexattr_destroy failed");
       return 1;
-- 
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