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[90.86.93.32]) by smtp.gmail.com with ESMTPSA id c14sm3708656wrn.12.2019.02.12.02.39.18 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 12 Feb 2019 02:39:18 -0800 (PST) From: Bartosz Golaszewski To: Sekhar Nori , Kevin Hilman , Thomas Gleixner , Jason Cooper , Marc Zyngier , David Lechner Subject: [PATCH v3 19/37] ARM: davinci: aintc: request memory region before remapping it Date: Tue, 12 Feb 2019 11:38:17 +0100 Message-Id: <20190212103835.7768-20-brgl@bgdev.pl> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190212103835.7768-1-brgl@bgdev.pl> References: <20190212103835.7768-1-brgl@bgdev.pl> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190212_023921_516467_4FF80EBA X-CRM114-Status: GOOD ( 11.84 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Bartosz Golaszewski , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Bartosz Golaszewski Add a missing call to request_mem_region() before calling ioremap() to make sure the region is not being used by anyone else. Signed-off-by: Bartosz Golaszewski --- arch/arm/mach-davinci/irq.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm/mach-davinci/irq.c b/arch/arm/mach-davinci/irq.c index 2afaf19dc46c..2b6943731af9 100644 --- a/arch/arm/mach-davinci/irq.c +++ b/arch/arm/mach-davinci/irq.c @@ -86,9 +86,18 @@ davinci_aintc_handle_irq(struct pt_regs *regs) void __init davinci_aintc_init(const struct davinci_aintc_config *config) { unsigned int irq_off, reg_off, prio, shift; + void __iomem *req; int ret, irq_base; const u8 *prios; + req = request_mem_region(config->reg.start, + resource_size(&config->reg), + "davinci-cp-intc"); + if (!req) { + pr_err("%s: register range busy\n", __func__); + return; + } + davinci_aintc_base = ioremap(config->reg.start, resource_size(&config->reg)); if (!davinci_aintc_base) { -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel 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 X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 D3F42C282CA for ; Tue, 12 Feb 2019 10:39:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A00BE20449 for ; Tue, 12 Feb 2019 10:39:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20150623.gappssmtp.com header.i=@bgdev-pl.20150623.gappssmtp.com header.b="gfgHhJCI" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729054AbfBLKjX (ORCPT ); Tue, 12 Feb 2019 05:39:23 -0500 Received: from mail-wr1-f65.google.com ([209.85.221.65]:33111 "EHLO mail-wr1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729028AbfBLKjV (ORCPT ); Tue, 12 Feb 2019 05:39:21 -0500 Received: by mail-wr1-f65.google.com with SMTP id i12so2131169wrw.0 for ; Tue, 12 Feb 2019 02:39:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=3Hwye1NlQfpROfiatGP4AAPQ8WZ+X3wpSFiN169P8MI=; b=gfgHhJCIMdwQyiwFGV1QkFfJAo/DDHvP+0/W4htvK6gnnLaReXahhbh5X74EFkBBfr sKc4L8uQ2ODt66SDQXUryWorKbMbxWYx0Vpi5SNsosTd3CsR4t75neGvePx2UBLCA78C ipcJlrHYVRryoueriLI/jIT36jpGFvy6z1GXJHmOgE4JE+kryJa+aAjgAD4PfU+exRDT QuMf+gGATYsaB0uHAY5L95hFytaZNmdkEblwyLBD0WfFf92WPlSf5Y82Q5iI1TtipcS7 6TX+OTLvfQ4WURPzfgC9Dg2WeQ/j5AUUaCoBgui3yfzWCYus2dqshT2nDPiupSI2FWHO dj7Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=3Hwye1NlQfpROfiatGP4AAPQ8WZ+X3wpSFiN169P8MI=; b=A5kVgA23qInx3pzUaIWKtpx5sCP3PArGEaqvhZF+kJriSkRHWFXdUcKjmJDcmyrGPr jAcD1ua+Iv5clJPoep3ffPSBpWZsOmM+lhLqIvMLXnLsdsFXav36MFMxurNUkP0e74FN 7izPsA9elv+vjXs6N0XtDvqhUjf0+39ulDJK+fAOXRnTqk2D23sMYBsyiFkyfJ9Nn7me NMC/6svEGz8CqhLNtJPFPgyxObfQ3wZd2jVwOQ4LagzLeaYZryhjhEQqBJ21bazHmIAN uNzM2IfvQtHii0T1u4iGj7NycDnUoZx1Y8TE0Q8OtqkoQdQYNjq6EDnvQeRIsN3qOh6Z 520Q== X-Gm-Message-State: AHQUAuYiyuy+qT/eae7n0xdRmhk9OesW/vn80rvyq7aK2np/1EPUHpuH eI+IZSbmI/mZII/tN8WxG0mCuw== X-Google-Smtp-Source: AHgI3IZzJrN9VqLpqD7nqk+Dht2iIf2+d7+v4HQuiBiFinrky53GVdpUqe79GPK45WLE4hPlxLlhsA== X-Received: by 2002:a5d:42c3:: with SMTP id t3mr2257680wrr.232.1549967959188; Tue, 12 Feb 2019 02:39:19 -0800 (PST) Received: from localhost.localdomain (aputeaux-684-1-38-32.w90-86.abo.wanadoo.fr. [90.86.93.32]) by smtp.gmail.com with ESMTPSA id c14sm3708656wrn.12.2019.02.12.02.39.18 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 12 Feb 2019 02:39:18 -0800 (PST) From: Bartosz Golaszewski To: Sekhar Nori , Kevin Hilman , Thomas Gleixner , Jason Cooper , Marc Zyngier , David Lechner Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v3 19/37] ARM: davinci: aintc: request memory region before remapping it Date: Tue, 12 Feb 2019 11:38:17 +0100 Message-Id: <20190212103835.7768-20-brgl@bgdev.pl> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190212103835.7768-1-brgl@bgdev.pl> References: <20190212103835.7768-1-brgl@bgdev.pl> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Bartosz Golaszewski Add a missing call to request_mem_region() before calling ioremap() to make sure the region is not being used by anyone else. Signed-off-by: Bartosz Golaszewski --- arch/arm/mach-davinci/irq.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm/mach-davinci/irq.c b/arch/arm/mach-davinci/irq.c index 2afaf19dc46c..2b6943731af9 100644 --- a/arch/arm/mach-davinci/irq.c +++ b/arch/arm/mach-davinci/irq.c @@ -86,9 +86,18 @@ davinci_aintc_handle_irq(struct pt_regs *regs) void __init davinci_aintc_init(const struct davinci_aintc_config *config) { unsigned int irq_off, reg_off, prio, shift; + void __iomem *req; int ret, irq_base; const u8 *prios; + req = request_mem_region(config->reg.start, + resource_size(&config->reg), + "davinci-cp-intc"); + if (!req) { + pr_err("%s: register range busy\n", __func__); + return; + } + davinci_aintc_base = ioremap(config->reg.start, resource_size(&config->reg)); if (!davinci_aintc_base) { -- 2.20.1