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=-13.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 ECAECC43461 for ; Mon, 7 Sep 2020 16:51:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B7146207DE for ; Mon, 7 Sep 2020 16:51:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1599497491; bh=4ABVsmh5jI5NnXO2oNl8UNhINhHcy7IXqkNT+Q5jG1g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=X53G2oc2FeNaVVYoYtxx1PwOlauxqMRn8bQx4pGZXVAknF1MEBVJyaVHMDfbv8dqp Ucf7v9I8ADJKFjnvJO5m3GlqTd0ddxL/4T0CHQeFUH6Hvl0vXcQZrpbiYsEwBq5cs1 wAV8b6w3kL+p2OP8r2IZTHmIKPylpwmW0nT8puBo= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730330AbgIGQvZ (ORCPT ); Mon, 7 Sep 2020 12:51:25 -0400 Received: from mail.kernel.org ([198.145.29.99]:48694 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730768AbgIGQeu (ORCPT ); Mon, 7 Sep 2020 12:34:50 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8F1E0221E7; Mon, 7 Sep 2020 16:34:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1599496489; bh=4ABVsmh5jI5NnXO2oNl8UNhINhHcy7IXqkNT+Q5jG1g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PvJ3RZ2SmMhHdPfzspkrLAnUaGwrO3tTSsMbsxRwO1XOmBLu74yYogBweVFSmRn0a 128oXrAsaBkrwhet/a6Ufzz1ss7P5NYFZgRnYlD9076+cV99FPHKulJH7NR3j1fTbp AQQn4yiRv3cfHkjhACeNj+dT5oJvvcAJReifoUSc= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Dinghao Liu , Jiri Kosina , Sasha Levin , linux-input@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 18/26] HID: elan: Fix memleak in elan_input_configured Date: Mon, 7 Sep 2020 12:34:18 -0400 Message-Id: <20200907163426.1281284-18-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200907163426.1281284-1-sashal@kernel.org> References: <20200907163426.1281284-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Dinghao Liu [ Upstream commit b7429ea53d6c0936a0f10a5d64164f0aea440143 ] When input_mt_init_slots() fails, input should be freed to prevent memleak. When input_register_device() fails, we should call input_mt_destroy_slots() to free memory allocated by input_mt_init_slots(). Signed-off-by: Dinghao Liu Signed-off-by: Jiri Kosina Signed-off-by: Sasha Levin --- drivers/hid/hid-elan.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/hid/hid-elan.c b/drivers/hid/hid-elan.c index 07e26c3567eb9..6346282e0ff05 100644 --- a/drivers/hid/hid-elan.c +++ b/drivers/hid/hid-elan.c @@ -192,6 +192,7 @@ static int elan_input_configured(struct hid_device *hdev, struct hid_input *hi) ret = input_mt_init_slots(input, ELAN_MAX_FINGERS, INPUT_MT_POINTER); if (ret) { hid_err(hdev, "Failed to init elan MT slots: %d\n", ret); + input_free_device(input); return ret; } @@ -202,6 +203,7 @@ static int elan_input_configured(struct hid_device *hdev, struct hid_input *hi) if (ret) { hid_err(hdev, "Failed to register elan input device: %d\n", ret); + input_mt_destroy_slots(input); input_free_device(input); return ret; } -- 2.25.1