From mboxrd@z Thu Jan 1 00:00:00 1970 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 E42EEC433F5 for ; Tue, 16 Nov 2021 00:36:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D4FF6619EA for ; Tue, 16 Nov 2021 00:36:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344795AbhKPAi5 (ORCPT ); Mon, 15 Nov 2021 19:38:57 -0500 Received: from mail.kernel.org ([198.145.29.99]:45396 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344798AbhKOTZa (ORCPT ); Mon, 15 Nov 2021 14:25:30 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 3C86F633DB; Mon, 15 Nov 2021 19:04:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1637003077; bh=P2r1svbrR0FvdhPuUQFkCzHvBD8t19nlfyexA5OxDa4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ChSKKj6TZjQk4QB4Fs7+a655bZmMNmR2rL7CrD0IWiRNWIWXw+TbSWQdxOUeeJWwa Y3RpSwj93s5QxWIcEnDakROZtruZ5Xg80HEw0JaokbanRd3vBalgoGTIBtiYOABzwR pi2pVp+xwy6G4YnVXlhviL0nwb3CHmjU4p+ytkx4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Kai Song , Lee Jones , Sasha Levin Subject: [PATCH 5.15 801/917] mfd: altera-sysmgr: Fix a mistake caused by resource_size conversion Date: Mon, 15 Nov 2021 18:04:56 +0100 Message-Id: <20211115165456.129673042@linuxfoundation.org> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211115165428.722074685@linuxfoundation.org> References: <20211115165428.722074685@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Kai Song [ Upstream commit fae2570d629cdd72f0611d015fc4ba705ae5422b ] The resource_size defines that: res->end - res->start + 1; The origin original code is: sysmgr_config.max_register = res->end - res->start - 3; So, the correct fix is that: sysmgr_config.max_register = resource_size(res) - 4; Fixes: d12edf9661a4 ("mfd: altera-sysmgr: Use resource_size function on resource object") Signed-off-by: Kai Song Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20211006141926.6120-1-songkai01@inspur.com Signed-off-by: Sasha Levin --- drivers/mfd/altera-sysmgr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mfd/altera-sysmgr.c b/drivers/mfd/altera-sysmgr.c index 20cb294c75122..5d3715a28b28e 100644 --- a/drivers/mfd/altera-sysmgr.c +++ b/drivers/mfd/altera-sysmgr.c @@ -153,7 +153,7 @@ static int sysmgr_probe(struct platform_device *pdev) if (!base) return -ENOMEM; - sysmgr_config.max_register = resource_size(res) - 3; + sysmgr_config.max_register = resource_size(res) - 4; regmap = devm_regmap_init_mmio(dev, base, &sysmgr_config); } -- 2.33.0