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Commit 89d46eb9 authored by qctecmdr's avatar qctecmdr Committed by Gerrit - the friendly Code Review server
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Merge "kernel/notifier.c: intercept duplicate registrations to avoid infinite loops"

parents a4a2524d 3d5ed8ff

kernel/notifier.c

+4 −0
Original line number Diff line number Diff line
@@ -22,6 +22,10 @@ static int notifier_chain_register(struct notifier_block **nl, 
		struct notifier_block *n)

{

	while ((*nl) != NULL) {

		if (unlikely((*nl) == n)) {

			WARN(1, "double register detected");

			return 0;

		}

		if (n->priority > (*nl)->priority)

			break;

		nl = &((*nl)->next);