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[PATCH] rbtree: fixed reversed RB_EMPTY_NODE and rb_next/prev

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The conditions got reserved. Also make rb_next() and rb_prev() check
for the empty condition.

Signed-off-by: Jens Axboe <axboe@suse.de>
This commit is contained in:
Jens Axboe
2006-07-11 21:15:52 +02:00
committed by Jens Axboe
parent 9817064b68
commit 10fd48f237
3 changed files with 9 additions and 3 deletions
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6
lib/rbtree.c
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@@ -322,6 +322,9 @@ struct rb_node *rb_next(struct rb_node *node)
{
struct rb_node *parent;
if (rb_parent(node) == node)
return NULL;
/* If we have a right-hand child, go down and then left as far
as we can. */
if (node->rb_right) {
@@ -348,6 +351,9 @@ struct rb_node *rb_prev(struct rb_node *node)
{
struct rb_node *parent;
if (rb_parent(node) == node)
return NULL;
/* If we have a left-hand child, go down and then right as far
as we can. */
if (node->rb_left) {