WARN_ON should help to detect double register of the same notifiers
Signed-off-by: Vasily Averin <vvs@xxxxxxxxxxxxx>
---
kernel/notifier.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/notifier.c b/kernel/notifier.c
index fd2c9ac..e02b2f0 100644
--- a/kernel/notifier.c
+++ b/kernel/notifier.c
@@ -22,6 +22,7 @@ static int notifier_chain_register(struct notifier_block **nl,
struct notifier_block *n)
{
while ((*nl) != NULL) {
+ WARN_ON((*nl) == n);
if (n->priority > (*nl)->priority)
break;
nl = &((*nl)->next);
--
1.9.1
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