From: Borislav Petkov <[email protected]> Avoid homegrown notifier registration checks.
No functional changes. Signed-off-by: Borislav Petkov <[email protected]> Cc: [email protected] --- arch/powerpc/kernel/setup-common.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index b1e43b69a559..32f9900cd4f4 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -725,14 +725,18 @@ static struct notifier_block kernel_offset_notifier = { void __init setup_panic(void) { - if (IS_ENABLED(CONFIG_RANDOMIZE_BASE) && kaslr_offset() > 0) - atomic_notifier_chain_register(&panic_notifier_list, - &kernel_offset_notifier); + if (IS_ENABLED(CONFIG_RANDOMIZE_BASE) && kaslr_offset() > 0) { + if (atomic_notifier_chain_register(&panic_notifier_list, + &kernel_offset_notifier)) + pr_warn("Kernel offset notifier already registered\n"); + } /* PPC64 always does a hard irq disable in its panic handler */ if (!IS_ENABLED(CONFIG_PPC64) && !ppc_md.panic) return; - atomic_notifier_chain_register(&panic_notifier_list, &ppc_panic_block); + + if (atomic_notifier_chain_register(&panic_notifier_list, &ppc_panic_block)) + pr_warn("Panic notifier already registered\n"); } #ifdef CONFIG_CHECK_CACHE_COHERENCY -- 2.29.2
