Remove inappropriate \n from easy-ust sample

[lttng-ust.git] / libringbuffer / shm.c

diff --git a/libringbuffer/shm.c b/libringbuffer/shm.c
index 781295beb718c69057fb9ba54e89916fba5ad00c..e9fe12ec8853400051672ef89b6480995458fee8 100644 (file)
--- a/libringbuffer/shm.c
+++ b/libringbuffer/shm.c
@@ -1,9 +1,21 @@
 /*
  * libringbuffer/shm.c
  *
- * Copyright 2011 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright (C) 2005-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  *
- * Dual LGPL v2.1/GPL v2 license.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; only
+ * version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #include "shm.h"
@@ -17,6 +29,8 @@
 #include <signal.h>
 #include <dirent.h>
 #include <lttng/align.h>
+#include <helper.h>
+#include <limits.h>
 
 struct shm_object_table *shm_object_table_create(size_t max_nb_obj)
 {
@@ -210,10 +224,12 @@ void shmp_object_destroy(struct shm_object *obj)
                        assert(0);
                }
        }
-       ret = close(obj->shm_fd);
-       if (ret) {
-               PERROR("close");
-               assert(0);
+       if (obj->shm_fd >= 0) {
+               ret = close(obj->shm_fd);
+               if (ret) {
+                       PERROR("close");
+                       assert(0);
+               }
        }
        for (i = 0; i < 2; i++) {
                if (obj->wait_fd[i] < 0)