From patchwork Mon Nov 8 10:11:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Borislav Petkov X-Patchwork-Id: 12608141 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 85792C433F5 for ; Mon, 8 Nov 2021 10:12:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5E40D610C8 for ; Mon, 8 Nov 2021 10:12:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237905AbhKHKPE (ORCPT ); Mon, 8 Nov 2021 05:15:04 -0500 Received: from mail.skyhub.de ([5.9.137.197]:38262 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237820AbhKHKPD (ORCPT ); Mon, 8 Nov 2021 05:15:03 -0500 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 882681EC04F9; Mon, 8 Nov 2021 11:12:18 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1636366338; 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=pC+lbIlcGv1j3XkDfTSs0sRGhsbjTty6nFQwrtKjf0s=; b=Z9gIVV1V5rkYabJG5os2pf2e3fqyNnmC8KQbPSgnSrNG03TKVFMiJQZbqs6mLQsMCwwtPv T2k/IrVub07C1zRLDSMF5PcVyP83dk29HeYQcgvUDHSTpT5WVdohPsz7lQiFRuOjq7cN+y su2vysrZbwd/yJvnCwHzEAgs6lfkKZ0= From: Borislav Petkov To: LKML Cc: linux-pm@vger.kernel.org Subject: [PATCH v0 13/42] power: reset: Check notifier registration return value Date: Mon, 8 Nov 2021 11:11:28 +0100 Message-Id: <20211108101157.15189-14-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-pm@vger.kernel.org From: Borislav Petkov Avoid homegrown notifier registration checks. No functional changes. Signed-off-by: Borislav Petkov Cc: linux-pm@vger.kernel.org --- drivers/power/reset/ltc2952-poweroff.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/power/reset/ltc2952-poweroff.c b/drivers/power/reset/ltc2952-poweroff.c index fbb344353fe4..6ca251e4b1be 100644 --- a/drivers/power/reset/ltc2952-poweroff.c +++ b/drivers/power/reset/ltc2952-poweroff.c @@ -279,8 +279,10 @@ static int ltc2952_poweroff_probe(struct platform_device *pdev) pm_power_off = ltc2952_poweroff_kill; data->panic_notifier.notifier_call = ltc2952_poweroff_notify_panic; - atomic_notifier_chain_register(&panic_notifier_list, - &data->panic_notifier); + + if (atomic_notifier_chain_register(&panic_notifier_list, &data->panic_notifier)) + pr_warn("LTC2952 panic notifier already registered\n"); + dev_info(&pdev->dev, "probe successful\n"); return 0;