Commit 7f708931 authored Jul 19, 2011 by Jan H. Schönherr Committed by Paul E. McKenney Jul 20, 2011

rcu: Fix wrong check in list_splice_init_rcu()



If the list to be spliced is empty, then list_splice_init_rcu() has
nothing to do.  Unfortunately, list_splice_init_rcu() does not check
the list to be spliced; it instead checks the list to be spliced into.
This results in memory leaks given current usage.  This commit
therefore fixes the empty-list check.

Signed-off-by: Jan H. Schönherr <schnhrr@cs.tu-berlin.de>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

parent cefcb602

include/linux/rculist.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -183,7 +183,7 @@ static inline void list_splice_init_rcu(struct list_head *list,
		struct list_head *last = list->prev;
		struct list_head *at = head->next;

		if (list_empty(head))
		if (list_empty(list))
		return;

		/* "first" and "last" tracking list, so initialize it. */