From patchwork Thu Jan 7 11:17:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ionela Voinescu X-Patchwork-Id: 12003607 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1FB76C433E6 for ; Thu, 7 Jan 2021 11:20:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E3451221E9 for ; Thu, 7 Jan 2021 11:20:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726326AbhAGLTi (ORCPT ); Thu, 7 Jan 2021 06:19:38 -0500 Received: from foss.arm.com ([217.140.110.172]:58090 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727850AbhAGLTF (ORCPT ); Thu, 7 Jan 2021 06:19:05 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 81D0B11D4; Thu, 7 Jan 2021 03:18:19 -0800 (PST) Received: from e108754-lin.cambridge.arm.com (unknown [10.1.198.32]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 67BC13F719; Thu, 7 Jan 2021 03:18:18 -0800 (PST) From: Ionela Voinescu To: rjw@rjwysocki.net, lenb@kernel.org, robert.moore@intel.com Cc: viro@zeniv.linux.org.uk, catalin.marinas@arm.com, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, ionela.voinescu@arm.com Subject: [PATCH 3/3] acpi: cppc_acpi: initialise vaddr pointers to NULL Date: Thu, 7 Jan 2021 11:17:17 +0000 Message-Id: <20210107111717.5571-4-ionela.voinescu@arm.com> X-Mailer: git-send-email 2.29.2.dirty In-Reply-To: <20210107111717.5571-1-ionela.voinescu@arm.com> References: <20210107111717.5571-1-ionela.voinescu@arm.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Properly initialise vaddr pointers in cpc_read() and cpc_write() to NULL instead of 0. This fixes the following sparse warnings: drivers/acpi/cppc_acpi.c:937:31: warning: Using plain integer as NULL pointer drivers/acpi/cppc_acpi.c:982:31: warning: Using plain integer as NULL pointer Signed-off-by: Ionela Voinescu Cc: "Rafael J. Wysocki" Cc: Len Brown --- drivers/acpi/cppc_acpi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c index fd71020f5d5f..69057fcd2c04 100644 --- a/drivers/acpi/cppc_acpi.c +++ b/drivers/acpi/cppc_acpi.c @@ -934,7 +934,7 @@ int __weak cpc_write_ffh(int cpunum, struct cpc_reg *reg, u64 val) static int cpc_read(int cpu, struct cpc_register_resource *reg_res, u64 *val) { int ret_val = 0; - void __iomem *vaddr = 0; + void __iomem *vaddr = NULL; int pcc_ss_id = per_cpu(cpu_pcc_subspace_idx, cpu); struct cpc_reg *reg = ®_res->cpc_entry.reg; @@ -979,7 +979,7 @@ static int cpc_read(int cpu, struct cpc_register_resource *reg_res, u64 *val) static int cpc_write(int cpu, struct cpc_register_resource *reg_res, u64 val) { int ret_val = 0; - void __iomem *vaddr = 0; + void __iomem *vaddr = NULL; int pcc_ss_id = per_cpu(cpu_pcc_subspace_idx, cpu); struct cpc_reg *reg = ®_res->cpc_entry.reg;