diff options
Diffstat (limited to 'kernel/notifier.c')
| -rw-r--r-- | kernel/notifier.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/notifier.c b/kernel/notifier.c index 6196af8a8223..d9f5081d578d 100644 --- a/kernel/notifier.c +++ b/kernel/notifier.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only #include <linux/kdebug.h> #include <linux/kprobes.h> #include <linux/export.h> @@ -22,6 +23,7 @@ static int notifier_chain_register(struct notifier_block **nl, struct notifier_block *n) { while ((*nl) != NULL) { + WARN_ONCE(((*nl) == n), "double register detected"); if (n->priority > (*nl)->priority) break; nl = &((*nl)->next); |