From patchwork Mon Nov 8 10:11:54 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Borislav Petkov X-Patchwork-Id: 12608169 X-Patchwork-Delegate: herbert@gondor.apana.org.au 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 10C2CC433F5 for ; Mon, 8 Nov 2021 10:13:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EE3AF61207 for ; Mon, 8 Nov 2021 10:13:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235202AbhKHKPt (ORCPT ); Mon, 8 Nov 2021 05:15:49 -0500 Received: from mail.skyhub.de ([5.9.137.197]:38552 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237912AbhKHKPY (ORCPT ); Mon, 8 Nov 2021 05:15:24 -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 464D71EC052C; Mon, 8 Nov 2021 11:12:39 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1636366359; 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=p0GXWGKIciLQRqkr0wIaBSSGQPCdQZ52kaQiTCJltwQ=; b=gIj84H0LtVTP7E5lbAU4mgjFb/CNbjoI+sNG+VbPzdEOttquNDSaWjuysIX1sOMHyHFLhi q3a5uD+i+HYksdTlr95F1tqQiQXwT4LIQyBbaj5PhATKAGNTb+SWaSurAFfOvt7Hllh07q BTsgf72FXFUwSvR9VigijonCN8dFtxE= From: Borislav Petkov To: LKML Cc: linux-crypto@vger.kernel.org Subject: [PATCH v0 39/42] crypto: ccree - check notifier registration return value Date: Mon, 8 Nov 2021 11:11:54 +0100 Message-Id: <20211108101157.15189-40-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-crypto@vger.kernel.org From: Borislav Petkov Avoid homegrown notifier registration checks. No functional changes. Signed-off-by: Borislav Petkov Cc: linux-crypto@vger.kernel.org --- drivers/crypto/ccree/cc_fips.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/crypto/ccree/cc_fips.c b/drivers/crypto/ccree/cc_fips.c index 702aefc21447..de842da7d51c 100644 --- a/drivers/crypto/ccree/cc_fips.c +++ b/drivers/crypto/ccree/cc_fips.c @@ -146,7 +146,9 @@ int cc_fips_init(struct cc_drvdata *p_drvdata) tasklet_init(&fips_h->tasklet, fips_dsr, (unsigned long)p_drvdata); fips_h->drvdata = p_drvdata; fips_h->nb.notifier_call = cc_ree_fips_failure; - atomic_notifier_chain_register(&fips_fail_notif_chain, &fips_h->nb); + + if (atomic_notifier_chain_register(&fips_fail_notif_chain, &fips_h->nb)) + pr_warn("Failure notifier already registered\n"); cc_tee_handle_fips_error(p_drvdata);