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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>
This commit is contained in:
Rasmus Villemoes 2014-08-06 16:09:40 -07:00 committed by Linus Torvalds
parent 27d555d101
commit 9d418dcc6d
1 changed files with 5 additions and 0 deletions
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5
lib/list_sort.c
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@ -272,6 +272,11 @@ static int __init list_sort_test(void)
} }
count++; count++;
} }
if (head.prev != cur) {
printk(KERN_ERR "list_sort_test: error: list is corrupted\n");
goto exit;
}
if (count != TEST_LIST_LEN) { if (count != TEST_LIST_LEN) {
printk(KERN_ERR "list_sort_test: error: bad list length %d", printk(KERN_ERR "list_sort_test: error: bad list length %d",