[Ada] Fix memory leak in win32_wait error handling

2018-05-23  Pascal Obry  <obry@adacore.com>

gcc/ada/

	* adaint.c (win32_wait): Properly free the handle/pid lists when
	WaitForMultipleObjects fails (return WAIT_FAILED).

From-SVN: r260599

gcc/ada/ChangeLog

 2018-05-23  Pascal Obry  <obry@adacore.com>
 
+	* adaint.c (win32_wait): Properly free the handle/pid lists when
+	WaitForMultipleObjects fails (return WAIT_FAILED).
+
+2018-05-23  Pascal Obry  <obry@adacore.com>
+
 	* adaint.c (win32_wait): Add missing parentheses.
 
 2018-05-23  Hristian Kirtchev  <kirtchev@adacore.com>

gcc/ada/adaint.c

@@ -2607,6 +2607,8 @@ win32_wait (int *status)
   /* If there was an error, exit now */
   if (res == WAIT_FAILED)
     {
+      free (hl);
+      free (pidl);
       errno = EINVAL;
       return -1;
     }