Add a check to make sure that the prev pointer of the list head points
to the last element on the list.
Signed-off-by: Rasmus Villemoes <li...@rasmusvillemoes.dk>
---
lib/list_sort.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/lib/list_sort.c b/lib/list_sort.c
index 291412a..832f525 100644
--- a/lib/list_sort.c
+++ b/lib/list_sort.c
@@ -272,6 +272,11 @@ static int __init list_sort_test(void)
}
count++;
}
+ if (head->prev != cur) {
+ printk(KERN_ERR "list_sort_test: error: list is corrupted\n");
+ goto exit;
+ }
+
if (count != TEST_LIST_LEN) {
printk(KERN_ERR "list_sort_test: error: bad list length %d",
--
1.9.2
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