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-rw-r--r--lib/list_debug.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/list_debug.c b/lib/list_debug.c
index 1a39f4e3ae1f..344c710d16ca 100644
--- a/lib/list_debug.c
+++ b/lib/list_debug.c
@@ -43,6 +43,12 @@ EXPORT_SYMBOL(__list_add);
*/
void list_del(struct list_head *entry)
{
+ WARN(entry->next == LIST_POISON1,
+ "list_del corruption, next is LIST_POISON1 (%p)\n",
+ LIST_POISON1);
+ WARN(entry->next != LIST_POISON1 && entry->prev == LIST_POISON2,
+ "list_del corruption, prev is LIST_POISON2 (%p)\n",
+ LIST_POISON2);
WARN(entry->prev->next != entry,
"list_del corruption. prev->next should be %p, "
"but was %p\n", entry, entry->prev->next);