re PR libfortran/22423 (Warnings when building libgfortran)

2006-05-19  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/22423
	* io/transfer.c (read_block): Return NULL instead of nothing.

From-SVN: r113923

libgfortran/ChangeLog

+2006-05-19  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
+
+	PR libgfortran/22423
+	* io/transfer.c (read_block): Return NULL instead of nothing.
+	
 2006-05-16  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
 
 	PR libgfortran/27575

libgfortran/io/transfer.c

@@ -276,7 +276,7 @@ read_block (st_parameter_dt *dtp, int *length)
 	{
 	  dtp->u.p.current_unit->endfile = AT_ENDFILE;
 	  generate_error (&dtp->common, ERROR_END, NULL);
-	  return;
+	  return NULL;
 	}
 
       *length = dtp->u.p.current_unit->bytes_left;