From patchwork Fri Sep 16 10:23:31 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johan Hovold X-Patchwork-Id: 606499 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 76492C54EE9 for ; Fri, 16 Sep 2022 10:43:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231491AbiIPKns (ORCPT ); Fri, 16 Sep 2022 06:43:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36560 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231499AbiIPKnC (ORCPT ); Fri, 16 Sep 2022 06:43:02 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9801D40BCE; Fri, 16 Sep 2022 03:24:40 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id C1ACC62A94; Fri, 16 Sep 2022 10:23:45 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1E57BC433D7; Fri, 16 Sep 2022 10:23:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1663323825; bh=PcROEtjraoCeHz2QhulSw6cJnaFIKwnuW0ytQUgMqgg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LKgxznGRtWzydtRQejI+/Uv1h1EGNrKruic3MNixFSjSjCy3v3I+SYsV1gaPnDMpB TzXCabvy/ZnLXs2oew4W09jVf63BYukUQgoAwgJ5kASq3Wx3pY4Rmz9i3UKsTNyNYk RSOdpspS+AyyBSlx7N1xUT56ifSVMga359JXezIgPreK3HPMEBmeu9Dac4Mk7j/sFi rCaO1zA1U++dCyTNFrPb2zUHfkmGLrOqq2wzKD7F5+Zm6w+Alms+O8O1AqjRt37PQT +l3e8Sydf30PNOw84n+KCjo8QGgnf9eCQJpxe4lXiwF3hXo+VUnSzET1o4p09mOeRc icpCPabuy6FEA== Received: from johan by xi.lan with local (Exim 4.94.2) (envelope-from ) id 1oZ8Vi-00030P-BW; Fri, 16 Sep 2022 12:23:50 +0200 From: Johan Hovold To: Vinod Koul Cc: Dmitry Baryshkov , Andy Gross , Bjorn Andersson , Konrad Dybcio , Kishon Vijay Abraham I , linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, linux-kernel@vger.kernel.org, Johan Hovold Subject: [PATCH v2 02/11] phy: qcom-qmp-pcie: fix memleak on probe deferral Date: Fri, 16 Sep 2022 12:23:31 +0200 Message-Id: <20220916102340.11520-3-johan+linaro@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220916102340.11520-1-johan+linaro@kernel.org> References: <20220916102340.11520-1-johan+linaro@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Switch to using the device-managed of_iomap helper to avoid leaking memory on probe deferral and driver unbind. Note that this helper checks for already reserved regions and may fail if there are multiple devices claiming the same memory. Fixes: e78f3d15e115 ("phy: qcom-qmp: new qmp phy driver for qcom-chipsets") Signed-off-by: Johan Hovold --- drivers/phy/qualcomm/phy-qcom-qmp-pcie.c | 34 ++++++++++++------------ 1 file changed, 17 insertions(+), 17 deletions(-) diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c index 05e73625a619..e6636700871c 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c @@ -2258,17 +2258,17 @@ static int qmp_pcie_create(struct device *dev, struct device_node *np, int id, * For dual lane PHYs: tx2 -> 3, rx2 -> 4, pcs_misc (optional) -> 5 * For single lane PHYs: pcs_misc (optional) -> 3. */ - qphy->tx = of_iomap(np, 0); - if (!qphy->tx) - return -ENOMEM; + qphy->tx = devm_of_iomap(dev, np, 0, NULL); + if (IS_ERR(qphy->tx)) + return PTR_ERR(qphy->tx); - qphy->rx = of_iomap(np, 1); - if (!qphy->rx) - return -ENOMEM; + qphy->rx = devm_of_iomap(dev, np, 1, NULL); + if (IS_ERR(qphy->rx)) + return PTR_ERR(qphy->rx); - qphy->pcs = of_iomap(np, 2); - if (!qphy->pcs) - return -ENOMEM; + qphy->pcs = devm_of_iomap(dev, np, 2, NULL); + if (IS_ERR(qphy->pcs)) + return PTR_ERR(qphy->pcs); /* * If this is a dual-lane PHY, then there should be registers for the @@ -2277,9 +2277,9 @@ static int qmp_pcie_create(struct device *dev, struct device_node *np, int id, * offset from the first lane. */ if (cfg->is_dual_lane_phy) { - qphy->tx2 = of_iomap(np, 3); - qphy->rx2 = of_iomap(np, 4); - if (!qphy->tx2 || !qphy->rx2) { + qphy->tx2 = devm_of_iomap(dev, np, 3, NULL); + qphy->rx2 = devm_of_iomap(dev, np, 4, NULL); + if (IS_ERR(qphy->tx2) || IS_ERR(qphy->rx2)) { dev_warn(dev, "Underspecified device tree, falling back to legacy register regions\n"); @@ -2289,20 +2289,20 @@ static int qmp_pcie_create(struct device *dev, struct device_node *np, int id, qphy->rx2 = qphy->rx + QMP_PHY_LEGACY_LANE_STRIDE; } else { - qphy->pcs_misc = of_iomap(np, 5); + qphy->pcs_misc = devm_of_iomap(dev, np, 5, NULL); } } else { - qphy->pcs_misc = of_iomap(np, 3); + qphy->pcs_misc = devm_of_iomap(dev, np, 3, NULL); } - if (!qphy->pcs_misc && + if (IS_ERR(qphy->pcs_misc) && of_device_is_compatible(dev->of_node, "qcom,ipq6018-qmp-pcie-phy")) qphy->pcs_misc = qphy->pcs + 0x400; - if (!qphy->pcs_misc) { + if (IS_ERR(qphy->pcs_misc)) { if (cfg->pcs_misc_tbl || cfg->pcs_misc_tbl_sec) - return -EINVAL; + return PTR_ERR(qphy->pcs_misc); } qphy->pipe_clk = devm_get_clk_from_child(dev, np, NULL);