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authorGreg Kroah-Hartman <gregkh@suse.de>2011-02-24 14:36:31 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2011-02-24 14:36:31 -0500
commitf227e08b71b9c273eaa29a57370a3a5b833aa382 (patch)
tree9f1483776a2bde3bb1a6bd744e69acf19f6f3428 /lib/list_debug.c
parentfec38d1752c01ad72789bac9f1a128f7e933735d (diff)
parentf5412be599602124d2bdd49947b231dd77c0bf99 (diff)
Merge 2.6.38-rc6 into tty-next
This was to resolve a merge issue with drivers/char/Makefile and drivers/tty/serial/68328serial.c Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'lib/list_debug.c')
-rw-r--r--lib/list_debug.c39
1 files changed, 26 insertions, 13 deletions
diff --git a/lib/list_debug.c b/lib/list_debug.c
index 344c710d16ca..b8029a5583ff 100644
--- a/lib/list_debug.c
+++ b/lib/list_debug.c
@@ -35,6 +35,31 @@ void __list_add(struct list_head *new,
35} 35}
36EXPORT_SYMBOL(__list_add); 36EXPORT_SYMBOL(__list_add);
37 37
38void __list_del_entry(struct list_head *entry)
39{
40 struct list_head *prev, *next;
41
42 prev = entry->prev;
43 next = entry->next;
44
45 if (WARN(next == LIST_POISON1,
46 "list_del corruption, %p->next is LIST_POISON1 (%p)\n",
47 entry, LIST_POISON1) ||
48 WARN(prev == LIST_POISON2,
49 "list_del corruption, %p->prev is LIST_POISON2 (%p)\n",
50 entry, LIST_POISON2) ||
51 WARN(prev->next != entry,
52 "list_del corruption. prev->next should be %p, "
53 "but was %p\n", entry, prev->next) ||
54 WARN(next->prev != entry,
55 "list_del corruption. next->prev should be %p, "
56 "but was %p\n", entry, next->prev))
57 return;
58
59 __list_del(prev, next);
60}
61EXPORT_SYMBOL(__list_del_entry);
62
38/** 63/**
39 * list_del - deletes entry from list. 64 * list_del - deletes entry from list.
40 * @entry: the element to delete from the list. 65 * @entry: the element to delete from the list.
@@ -43,19 +68,7 @@ EXPORT_SYMBOL(__list_add);
43 */ 68 */
44void list_del(struct list_head *entry) 69void list_del(struct list_head *entry)
45{ 70{
46 WARN(entry->next == LIST_POISON1, 71 __list_del_entry(entry);
47 "list_del corruption, next is LIST_POISON1 (%p)\n",
48 LIST_POISON1);
49 WARN(entry->next != LIST_POISON1 && entry->prev == LIST_POISON2,
50 "list_del corruption, prev is LIST_POISON2 (%p)\n",
51 LIST_POISON2);
52 WARN(entry->prev->next != entry,
53 "list_del corruption. prev->next should be %p, "
54 "but was %p\n", entry, entry->prev->next);
55 WARN(entry->next->prev != entry,
56 "list_del corruption. next->prev should be %p, "
57 "but was %p\n", entry, entry->next->prev);
58 __list_del(entry->prev, entry->next);
59 entry->next = LIST_POISON1; 72 entry->next = LIST_POISON1;
60 entry->prev = LIST_POISON2; 73 entry->prev = LIST_POISON2;
61} 74}