From patchwork Wed Oct 2 03:46:07 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Navid Emamdoost X-Patchwork-Id: 11170515 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 636A316B1 for ; Wed, 2 Oct 2019 07:19:04 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4BC842086A for ; Wed, 2 Oct 2019 07:19:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4BC842086A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E403B6E8D1; Wed, 2 Oct 2019 07:18:35 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-io1-xd41.google.com (mail-io1-xd41.google.com [IPv6:2607:f8b0:4864:20::d41]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1C35B6E252; Wed, 2 Oct 2019 03:46:20 +0000 (UTC) Received: by mail-io1-xd41.google.com with SMTP id z19so53802780ior.0; Tue, 01 Oct 2019 20:46:20 -0700 (PDT) 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; bh=sMiLu1nFfK7FMPb2g7QpUm4/s0CIGTuYLHYbn9DfaIs=; b=p8xbBm14XWtTTB5CMUmKCk5HdfK4J+7dnX0aa4QgzvjorPWHbMJOGor+sQ8tH1XBBf OdOoQpJoHGJhtZE31IWkRYJduODy87Ls7xGS5X0ZGzDjYmchS1ia30r+AtxfmLvLRzo5 Tki1Za//l1AnZw+xbTw9HO6+eRjgsxkaglcQSUoL3JFTRil7ptPgMcKVXXTnuKtAs0bv jsYZEReD4QvLMQ8LzCnVpT4U/IGnC1Z0nYEybQLfh3/U6+KrlKlChCcJaHM6XqUDRXnJ ca7PaNwKZw9K5KqtzCWS2NY5OmhJtLc26ppMsqTsH5gXR1SFtHUdYia9XDit7yDE9sQ2 suoA== X-Gm-Message-State: APjAAAWF+EiYHE0RPIRH6BNjq5INluV0N5EYwqBAesLfAmUQKGSZi1Lg 8B9u9xSnkK7DVOJf7HwPBo4= X-Google-Smtp-Source: APXvYqxBSaRVO13ufXz4U6Ax3TS8H6IV1DY0yKgl9bb9DwQJ273pBwhSqWynoCXut9XmvjP3YaTsiQ== X-Received: by 2002:a92:3951:: with SMTP id g78mr1716427ila.47.1569987980208; Tue, 01 Oct 2019 20:46:20 -0700 (PDT) Received: from cs-dulles.cs.umn.edu (cs-dulles.cs.umn.edu. [128.101.35.54]) by smtp.googlemail.com with ESMTPSA id d20sm8878418ilk.83.2019.10.01.20.46.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Oct 2019 20:46:19 -0700 (PDT) From: Navid Emamdoost To: Christian.Koenig@amd.com Subject: [PATCH v4] drm/amdgpu: fix multiple memory leaks in acp_hw_init Date: Tue, 1 Oct 2019 22:46:07 -0500 Message-Id: <20191002034612.26607-1-navid.emamdoost@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <3a00a4c9-af4c-3505-1bef-b119435da5d7@amd.com> References: <3a00a4c9-af4c-3505-1bef-b119435da5d7@amd.com> X-Mailman-Approved-At: Wed, 02 Oct 2019 07:18:31 +0000 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=sMiLu1nFfK7FMPb2g7QpUm4/s0CIGTuYLHYbn9DfaIs=; b=KWDfpkNW+DV7MjaClVF7N49DLsXJyF3RAT4b7pah37LslRcUv0Rcr2rXdfsgE/Ycm/ xF3IskpJLJOkAcmNwVcD+p5yCLEgITeuIWiJye+83OJ0O67cSlDLUfYQOlgw2pppc4Gp DFmnAQLlxL5oJW3HwQxarNO5uyOfBS47AJ6LKj9CPtN5X8Vp+nhJRDb2zBfUzrP4vhNM 81qsfDlhnEPKdG6QjkkHDl4D0/iE7FI/P3GD+H+6dOKgo1SG2je6TeOzGM1PB1AN/ifR 4lAXRHKiGK53gg5hp82rMympyIWVjM61PUSoflF+t0WAWQdBnbbJyUuptHxFrUxzTZkF ntUg== X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: David Airlie , Rex Zhu , kjlu@umn.edu, linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org, emamd001@umn.edu, dri-devel@lists.freedesktop.org, smccaman@umn.edu, Alex Deucher , Sam Ravnborg , =?utf-8?q?Christian_K=C3=B6nig?= , Navid Emamdoost MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" In acp_hw_init there are some allocations that needs to be released in case of failure: 1- adev->acp.acp_genpd should be released if any allocation attemp for adev->acp.acp_cell, adev->acp.acp_res or i2s_pdata fails. 2- all of those allocations should be released if mfd_add_hotplug_devices or pm_genpd_add_device fail. 3- Release is needed in case of time out values expire. Signed-off-by: Navid Emamdoost --- drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c | 34 ++++++++++++++++--------- 1 file changed, 22 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c index eba42c752bca..82155ac3288a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c @@ -189,7 +189,7 @@ static int acp_hw_init(void *handle) u32 val = 0; u32 count = 0; struct device *dev; - struct i2s_platform_data *i2s_pdata; + struct i2s_platform_data *i2s_pdata = NULL; struct amdgpu_device *adev = (struct amdgpu_device *)handle; @@ -231,20 +231,21 @@ static int acp_hw_init(void *handle) adev->acp.acp_cell = kcalloc(ACP_DEVS, sizeof(struct mfd_cell), GFP_KERNEL); - if (adev->acp.acp_cell == NULL) - return -ENOMEM; + if (adev->acp.acp_cell == NULL) { + r = -ENOMEM; + goto failure; + } adev->acp.acp_res = kcalloc(5, sizeof(struct resource), GFP_KERNEL); if (adev->acp.acp_res == NULL) { - kfree(adev->acp.acp_cell); - return -ENOMEM; + r = -ENOMEM; + goto failure; } i2s_pdata = kcalloc(3, sizeof(struct i2s_platform_data), GFP_KERNEL); if (i2s_pdata == NULL) { - kfree(adev->acp.acp_res); - kfree(adev->acp.acp_cell); - return -ENOMEM; + r = -ENOMEM; + goto failure; } switch (adev->asic_type) { @@ -341,14 +342,14 @@ static int acp_hw_init(void *handle) r = mfd_add_hotplug_devices(adev->acp.parent, adev->acp.acp_cell, ACP_DEVS); if (r) - return r; + goto failure; for (i = 0; i < ACP_DEVS ; i++) { dev = get_mfd_cell_dev(adev->acp.acp_cell[i].name, i); r = pm_genpd_add_device(&adev->acp.acp_genpd->gpd, dev); if (r) { dev_err(dev, "Failed to add dev to genpd\n"); - return r; + goto failure; } } @@ -367,7 +368,8 @@ static int acp_hw_init(void *handle) break; if (--count == 0) { dev_err(&adev->pdev->dev, "Failed to reset ACP\n"); - return -ETIMEDOUT; + r = -ETIMEDOUT; + goto failure; } udelay(100); } @@ -384,7 +386,8 @@ static int acp_hw_init(void *handle) break; if (--count == 0) { dev_err(&adev->pdev->dev, "Failed to reset ACP\n"); - return -ETIMEDOUT; + r = -ETIMEDOUT; + goto failure; } udelay(100); } @@ -393,6 +396,13 @@ static int acp_hw_init(void *handle) val &= ~ACP_SOFT_RESET__SoftResetAud_MASK; cgs_write_register(adev->acp.cgs_device, mmACP_SOFT_RESET, val); return 0; + +failure: + kfree(i2s_pdata); + kfree(adev->acp.acp_res); + kfree(adev->acp.acp_cell); + kfree(adev->acp.acp_genpd); + return r; } /**