closures.c (open_temp_exec_file_mnt): Check if getmntent_r returns NULL.

	* src/closures.c (open_temp_exec_file_mnt): Check if getmntent_r
	returns NULL.

From-SVN: r163809

libffi/ChangeLog

+2010-08-20  Mark Wielaard  <mjw@redhat.com>
+
+	* src/closures.c (open_temp_exec_file_mnt): Check if getmntent_r
+	returns NULL.
+
 2010-08-09  Andreas Tobler  <andreast@fgznet.ch>
 
 	* configure.ac: Add target powerpc64-*-freebsd*.

libffi/src/closures.c

@@ -294,7 +294,7 @@ open_temp_exec_file_mnt (const char *mounts)
       struct mntent mnt;
       char buf[MAXPATHLEN * 3];
 
-      if (getmntent_r (last_mntent, &mnt, buf, sizeof (buf)))
+      if (getmntent_r (last_mntent, &mnt, buf, sizeof (buf)) == NULL)
 	return -1;
 
       if (hasmntopt (&mnt, "ro")