More cleanup possibilities

* procfs.c, procfs.h: Extend the signature of the
  cleanup_contents callback in the procfs_node_ops structure to include
  the hook and contents_len.  (cleanup_contents_with_free,
  cleanup_contents_with_vm_deallocate): New functions, can be used as
  a cleanup_contents callback for simple cases.
* procfs_dir.c, procfs_dir.h (procfs_dir_make_node):
  Update, add a cleanup callback, make sure the cleanup callback is
  invoked if there is an error.
* proclist.c (proclist_make_node), main.c (main): Update to match
  the new interfaces.

1 files changed, 1 insertions, 1 deletions

diff --git a/proclist.c b/proclist.c
index 16cef9d..e009ebd 100644
--- a/proclist.c
+++ b/proclist.c
@@ -59,7 +59,7 @@ proclist_make_node (process_t process)
   static const struct procfs_node_ops ops = {
     .get_contents = proclist_get_contents,
     .lookup = proclist_lookup,
-    .cleanup_contents = free,
+    .cleanup_contents = procfs_cleanup_contents_with_free,
     .cleanup = free,
   };
   struct proclist_node *pl;