Fix recursive mutex bug

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@770 42af7a65-404d-4744-a932-0658087f49c3

sched/pthread_mutexattrsettype.c

@@ -92,7 +92,7 @@ int pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type)
   if (attr && pthread_mutexattr_verifytype(type) == OK)
     {
       attr->type = type;
-      return 0;
+      return OK;
     }
   return EINVAL;
 }

sched/pthread_mutexattrverifytype.c

@@ -89,7 +89,14 @@ int pthread_mutexattr_verifytype(int type)
 {
   /* The depends on the value assigments in pthread.h */
 
-  return (type >= PTHREAD_MUTEX_NORMAL && type <= PTHREAD_MUTEX_RECURSIVE);
+  if (type >= PTHREAD_MUTEX_NORMAL && type <= PTHREAD_MUTEX_RECURSIVE)
+    {
+      return OK;
+    }
+  else
+    {
+      return ERROR;
+    }
 }
 
 #endif /* CONFIG_MUTEX_TYPES */