[PATCH v2 06/45] reboot: Warn if unregister_restart_handler() fails

[PATCH v2 00/45] Introduce power-off+restart call chain API · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 01/45] notifier: Remove extern annotation from function prototypes · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 02/45] notifier: Add blocking_notifier_call_chain_empty() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 03/45] notifier: Add atomic/blocking_notifier_has_unique_priority() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
Re: [PATCH v2 03/45] notifier: Add atomic/blocking_notifier_has_unique_priority() · Andy Shevchenko <andriy.shevchenko@linux.intel.com> · 2021-10-28
Re: [PATCH v2 03/45] notifier: Add atomic/blocking_notifier_has_unique_priority() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-28
Re: [PATCH v2 03/45] notifier: Add atomic/blocking_notifier_has_unique_priority() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-28
Re: [PATCH v2 03/45] notifier: Add atomic/blocking_notifier_has_unique_priority() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-28
[PATCH v2 04/45] reboot: Correct typo in a comment · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 07/45] reboot: Remove extern annotation from function prototypes · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 09/45] xen/x86: Use do_kernel_power_off() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
Re: [PATCH v2 09/45] xen/x86: Use do_kernel_power_off() · Juergen Gross <jgross@suse.com> · 2021-10-28
[PATCH v2 10/45] ARM: Use do_kernel_power_off() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
Re: [PATCH v2 10/45] ARM: Use do_kernel_power_off() · "Russell King (Oracle)" <linux@armlinux.org.uk> · 2021-10-28
[PATCH v2 08/45] kernel: Add combined power-off+restart handler call chain API · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
Re: [PATCH v2 08/45] kernel: Add combined power-off+restart handler call chain API · "Rafael J. Wysocki" <rafael@kernel.org> · 2021-10-28
Re: [PATCH v2 08/45] kernel: Add combined power-off+restart handler call chain API · Dmitry Osipenko <digetx@gmail.com> · 2021-10-28
Re: [PATCH v2 08/45] kernel: Add combined power-off+restart handler call chain API · "Rafael J. Wysocki" <rafael@kernel.org> · 2021-10-28
Re: [PATCH v2 08/45] kernel: Add combined power-off+restart handler call chain API · Dmitry Osipenko <digetx@gmail.com> · 2021-10-28
Re: [PATCH v2 08/45] kernel: Add combined power-off+restart handler call chain API · Dmitry Osipenko <digetx@gmail.com> · 2021-10-28
[PATCH v2 06/45] reboot: Warn if unregister_restart_handler() fails · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 05/45] reboot: Warn if restart handler has duplicated priority · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 12/45] csky: Use do_kernel_power_off() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
Re: [PATCH v2 12/45] csky: Use do_kernel_power_off() · Guo Ren <guoren@kernel.org> · 2021-11-01
[PATCH v2 11/45] arm64: Use do_kernel_power_off() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
Re: [PATCH v2 11/45] arm64: Use do_kernel_power_off() · Catalin Marinas <catalin.marinas@arm.com> · 2021-11-01
[PATCH v2 13/45] ia64: Use do_kernel_power_off() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 14/45] mips: Use do_kernel_power_off() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 15/45] nds32: Use do_kernel_power_off() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
Re: [PATCH v2 15/45] nds32: Use do_kernel_power_off() · Greentime Hu <hidden> · 2021-10-28
[PATCH v2 17/45] powerpc: Use do_kernel_power_off() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 16/45] parisc: Use do_kernel_power_off() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
Re: [PATCH v2 16/45] parisc: Use do_kernel_power_off() · Helge Deller <deller@gmx.de> · 2021-10-28
[PATCH v2 18/45] riscv: Use do_kernel_power_off() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
Re: [PATCH v2 18/45] riscv: Use do_kernel_power_off() · Palmer Dabbelt <palmer@dabbelt.com> · 2021-10-27
[PATCH v2 19/45] sh: Use do_kernel_power_off() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 20/45] x86: Use do_kernel_power_off() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 21/45] m68k: Switch to new power-handler API · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 22/45] memory: emif: Use kernel_can_power_off() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 23/45] ACPI: power: Switch to power-handler API · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 25/45] reboot: Remove pm_power_off_prepare() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 24/45] regulator: pfuze100: Use devm_register_power_handler() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
Re: [PATCH v2 24/45] regulator: pfuze100: Use devm_register_power_handler() · Mark Brown <broonie@kernel.org> · 2021-10-28
[PATCH v2 26/45] soc/tegra: pmc: Utilize power-handler API to power off Nexus 7 properly · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 27/45] mfd: ntxec: Use devm_register_power_handler() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
Re: [PATCH v2 27/45] mfd: ntxec: Use devm_register_power_handler() · Jonathan Neuschäfer <j.neuschaefer@gmx.net> · 2021-11-06
Re: [PATCH v2 27/45] mfd: ntxec: Use devm_register_power_handler() · Dmitry Osipenko <digetx@gmail.com> · 2021-11-07
Re: [PATCH v2 27/45] mfd: ntxec: Use devm_register_power_handler() · Guenter Roeck <linux@roeck-us.net> · 2021-11-07
Re: [PATCH v2 27/45] mfd: ntxec: Use devm_register_power_handler() · Dmitry Osipenko <digetx@gmail.com> · 2021-11-07
Re: [PATCH v2 27/45] mfd: ntxec: Use devm_register_power_handler() · Guenter Roeck <linux@roeck-us.net> · 2021-11-07
Re: [PATCH v2 27/45] mfd: ntxec: Use devm_register_power_handler() · Dmitry Osipenko <digetx@gmail.com> · 2021-11-07
Re: [PATCH v2 27/45] mfd: ntxec: Use devm_register_power_handler() · Jonathan Neuschäfer <j.neuschaefer@gmx.net> · 2021-11-08
Re: [PATCH v2 27/45] mfd: ntxec: Use devm_register_power_handler() · Dmitry Osipenko <digetx@gmail.com> · 2021-11-08
Re: [PATCH v2 27/45] mfd: ntxec: Use devm_register_power_handler() · Jonathan Neuschäfer <j.neuschaefer@gmx.net> · 2021-11-10
Re: [PATCH v2 27/45] mfd: ntxec: Use devm_register_power_handler() · Dmitry Osipenko <digetx@gmail.com> · 2021-11-10
[PATCH v2 29/45] mfd: acer-a500: Use devm_register_power_handler() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 28/45] mfd: rn5t618: Use devm_register_power_handler() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
Re: [PATCH v2 28/45] mfd: rn5t618: Use devm_register_power_handler() · Lee Jones <hidden> · 2021-11-29
Re: [PATCH v2 28/45] mfd: rn5t618: Use devm_register_power_handler() · Dmitry Osipenko <digetx@gmail.com> · 2021-11-29
[PATCH v2 30/45] mfd: ene-kb3930: Use devm_register_power_handler() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 31/45] mfd: axp20x: Use register_simple_power_off_handler() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 32/45] mfd: retu: Use devm_register_simple_power_off_handler() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 33/45] mfd: rk808: Use devm_register_simple_power_off_handler() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 34/45] mfd: palmas: Use devm_register_simple_power_off_handler() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 35/45] mfd: max8907: Use devm_register_simple_power_off_handler() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 36/45] mfd: tps6586x: Use devm_register_simple_power_off_handler() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 37/45] mfd: tps65910: Use devm_register_simple_power_off_handler() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 39/45] mfd: dm355evm_msp: Use devm_register_trivial_power_off_handler() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 38/45] mfd: max77620: Use devm_register_simple_power_off_handler() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
[PATCH v2 40/45] mfd: twl4030: Use devm_register_trivial_power_off_handler() · Dmitry Osipenko <digetx@gmail.com> · 2021-10-27
Re: [PATCH v2 00/45] Introduce power-off+restart call chain API · Dmitry Osipenko <digetx@gmail.com> · 2021-10-28

From: Dmitry Osipenko <digetx@gmail.com>
Date: 2021-10-27 21:18:39
Also in: linux-acpi, linux-m68k, linux-mips, linux-omap, linux-pm, linux-riscv, linux-sh, linux-tegra, 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 d39e599c3c99..291d44082f42 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

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