[PATCH v4 06/25] reboot: Warn if unregister_restart_handler() fails
From: Dmitry Osipenko <digetx@gmail.com>
Date: 2021-11-26 18:23:30
Also in:
linux-m68k, linux-mips, linux-pm, linux-riscv, linux-sh, linux-tegra, linuxppc-dev, lkml, xen-devel
Subsystem:
the rest · Maintainer:
Linus Torvalds
Emit warning if unregister_restart_handler() fails since it never should fail. This will ease further API development by catching mistakes early. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- kernel/reboot.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/reboot.c b/kernel/reboot.c
index e6659ae329f1..f0e7b9c13f6b 100644
--- a/kernel/reboot.c
+++ b/kernel/reboot.c@@ -210,7 +210,7 @@ EXPORT_SYMBOL(register_restart_handler); */ int unregister_restart_handler(struct notifier_block *nb) { - return atomic_notifier_chain_unregister(&restart_handler_list, nb); + return WARN_ON(atomic_notifier_chain_unregister(&restart_handler_list, nb)); } EXPORT_SYMBOL(unregister_restart_handler);
--
2.33.1