Fix the failure semantics of procfs_make_node

* procfs.c (procfs_make_node): Invoke the cleanup callback on
  failure, so that callers don't have to.
* procfs.h: Document the change.
* procfs_dir.c (procfs_dir_make_node), procfs_file.c
  (procfs_file_make_node), proclist.c (proclist_make_node):
  Update to reflect the change.

1 files changed, 1 insertions, 6 deletions

diff --git a/proclist.c b/proclist.c
index 4dd6ab3..16cef9d 100644
--- a/proclist.c
+++ b/proclist.c
@@ -63,7 +63,6 @@ proclist_make_node (process_t process)
     .cleanup = free,
   };
   struct proclist_node *pl;
-  struct node *np;
 
   pl = malloc (sizeof *pl);
   if (! pl)
@@ -72,10 +71,6 @@ proclist_make_node (process_t process)
   memset (pl, 0, sizeof *pl);
   pl->process = process;
 
-  np = procfs_make_node (&ops, pl);
-  if (! np)
-    free (pl);
-
-  return np;
+  return procfs_make_node (&ops, pl);
 }