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Birdlib: Do cleanups after remove/free

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To avoid byzantine behavior in case of some errors, linked lists are
cleared after rem_node() and resource headers are cleared after rfree().
This commit is contained in:
Ondrej Zajicek (work)
2016-03-22 13:35:40 +01:00
parent 39a6b19d6d
commit 665b8e5283
4 changed files with 5 additions and 29 deletions
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19
lib/lists.c
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@@ -88,7 +88,7 @@ insert_node(node *n, node *after)
* rem_node - remove a node from a list
* @n: node to be removed
*
* Removes a node @n from the list it's linked in.
* Removes a node @n from the list it's linked in. Afterwards, node @n is cleared.
*/
LIST_INLINE void
rem_node(node *n)
@@ -96,23 +96,6 @@ rem_node(node *n)
node *z = n->prev;
node *x = n->next;
z->next = x;
x->prev = z;
}
/**
* rem2_node - remove a node from a list, with cleanup
* @n: node to be removed
*
* Removes a node @n from the list it's linked in and resets its pointers to NULL.
* Useful if you want to distinguish between linked and unlinked nodes.
*/
LIST_INLINE void
rem2_node(node *n)
{
node *z = n->prev;
node *x = n->next;
z->next = x;
x->prev = z;
n->next = NULL;