* fhandler.cc (fhandler_base::fchmod): Do the right thing when changing an "on

disk" device or fifo.
(fhandler_base::fchown): Ditto for changing ownership.
* fhandler_disk_file.cc (fhandler_base::fstat_helper): Accommodate device files
on ntfs partitions.
* path.cc (path_conv::check): Use isfs function to figure out if a path exists
on a filesystem to make sure that device files are caught.

winsup/cygwin/pinfo.cc

@@ -71,7 +71,6 @@ set_myself (HANDLE h)
       ForceCloseHandle (cygheap->pid_handle);
       cygheap->pid_handle = NULL;
     }
-  return;
 }
 
 /* Initialize the process table entry for the current task.