lib: list_sort_test(): add extra corruption check
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 <linux@rasmusvillemoes.dk>
Cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Cc: Don Mullis <don.mullis@gmail.com>
Cc: Dave Chinner <david@fromorbit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/lib/list_sort.c b/lib/list_sort.c
index 291412a..fbdbc867 100644
--- a/lib/list_sort.c
+++ b/lib/list_sort.c
@@ -272,6 +272,11 @@
}
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",