From patchwork Mon Nov 8 10:11:46 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Borislav Petkov X-Patchwork-Id: 12608191 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2E793C433FE for ; Mon, 8 Nov 2021 10:13:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0DE1B61361 for ; Mon, 8 Nov 2021 10:13:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238709AbhKHKQX (ORCPT ); Mon, 8 Nov 2021 05:16:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38562 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238644AbhKHKPj (ORCPT ); Mon, 8 Nov 2021 05:15:39 -0500 Received: from mail.skyhub.de (mail.skyhub.de [IPv6:2a01:4f8:190:11c2::b:1457]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1CA9AC061210; Mon, 8 Nov 2021 02:12:34 -0800 (PST) Received: from zn.tnic (p200300ec2f33110088892b77bd117736.dip0.t-ipconnect.de [IPv6:2003:ec:2f33:1100:8889:2b77:bd11:7736]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id AE7701EC0523; Mon, 8 Nov 2021 11:12:32 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1636366352; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Y/tC7FBtj/4kyDFqro541XOB2ueU0gzJogV2JsEIuOo=; b=LWtrjQklCK6JowN1I1zJ1D/4nNNuW35Wp1Hreeg/yaWk9i45+kBTx0x8K32o1jpGe/etw1 17SAwHwIkDd0JwXxZZsWSnz07u27GVnJckyznRnnL9Q61IuP7Bvj/aR/28knnBawIeU+XD A1TzzEmWfUoBOqGF09jQWmq2a0z5bq8= From: Borislav Petkov To: LKML Cc: linux-parisc@vger.kernel.org Subject: [PATCH v0 31/42] parisc: Check notifier registration return value Date: Mon, 8 Nov 2021 11:11:46 +0100 Message-Id: <20211108101157.15189-32-bp@alien8.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20211108101157.15189-1-bp@alien8.de> References: <20211108101157.15189-1-bp@alien8.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org From: Borislav Petkov Avoid homegrown notifier registration checks. No functional changes. Signed-off-by: Borislav Petkov Cc: linux-parisc@vger.kernel.org --- arch/parisc/kernel/pdc_chassis.c | 5 +++-- drivers/parisc/power.c | 5 +++-- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/arch/parisc/kernel/pdc_chassis.c b/arch/parisc/kernel/pdc_chassis.c index da154406d368..8bedc9faa791 100644 --- a/arch/parisc/kernel/pdc_chassis.c +++ b/arch/parisc/kernel/pdc_chassis.c @@ -135,8 +135,9 @@ void __init parisc_pdc_chassis_init(void) PDC_CHASSIS_VER); /* initialize panic notifier chain */ - atomic_notifier_chain_register(&panic_notifier_list, - &pdc_chassis_panic_block); + if (atomic_notifier_chain_register(&panic_notifier_list, + &pdc_chassis_panic_block)) + printk(KERN_WARNING "Panic notifier already registered\n"); /* initialize reboot notifier chain */ register_reboot_notifier(&pdc_chassis_reboot_block); diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c index 456776bd8ee6..26dabaa1e5f8 100644 --- a/drivers/parisc/power.c +++ b/drivers/parisc/power.c @@ -230,8 +230,9 @@ static int __init power_init(void) } /* Register a call for panic conditions. */ - atomic_notifier_chain_register(&panic_notifier_list, - &parisc_panic_block); + + if (atomic_notifier_chain_register(&panic_notifier_list, &parisc_panic_block)) + pr_warn("Panic notifier already registered\n"); return 0; }