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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 13080C54FB9 for ; Wed, 15 Nov 2023 20:05:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344311AbjKOUFD (ORCPT ); Wed, 15 Nov 2023 15:05:03 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52426 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344330AbjKOUE7 (ORCPT ); Wed, 15 Nov 2023 15:04:59 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B049AB9 for ; Wed, 15 Nov 2023 12:04:55 -0800 (PST) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 08AD8C433C7; Wed, 15 Nov 2023 20:04:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1700078695; bh=ZpFU/3ayOne/wULhsNVQJuf13IyIcd4viJoo07jJEzI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TBiXgypjqFsa9uwBQowExbLrsgJbzDM9ppkWIvSa1RYaQ9bw0uyiXX4GiH1tx+nFd MMPKTEMMUuKZfS2bWF2uJpbAgShN9TEdVghIU9QwvcSOYREkTOlPctSVKTAJDVk6mj npTGcwSmdMp8UlLEkBFTewYpuXzcqAq5Z9pUSjhM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Yang Yingliang , Dominik Brodowski , Sasha Levin Subject: [PATCH 4.14 33/45] pcmcia: ds: fix possible name leak in error path in pcmcia_device_add() Date: Wed, 15 Nov 2023 14:33:10 -0500 Message-ID: <20231115191421.567532381@linuxfoundation.org> X-Mailer: git-send-email 2.42.1 In-Reply-To: <20231115191419.641552204@linuxfoundation.org> References: <20231115191419.641552204@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Yang Yingliang [ Upstream commit 99e1241049a92dd3e9a90a0f91e32ce390133278 ] Afer commit 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array"), the name of device is allocated dynamically. Therefore, it needs to be freed, which is done by the driver core for us once all references to the device are gone. Therefore, move the dev_set_name() call immediately before the call device_register(), which either succeeds (then the freeing will be done upon subsequent remvoal), or puts the reference in the error call. Also, it is not unusual that the return value of dev_set_name is not checked. Fixes: 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array") Signed-off-by: Yang Yingliang [linux@dominikbrodowski.net: simplification, commit message modified] Signed-off-by: Dominik Brodowski Signed-off-by: Sasha Levin --- drivers/pcmcia/ds.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index e07bd5249f271..3701887be32e8 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -521,9 +521,6 @@ static struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, /* by default don't allow DMA */ p_dev->dma_mask = DMA_MASK_NONE; p_dev->dev.dma_mask = &p_dev->dma_mask; - dev_set_name(&p_dev->dev, "%d.%d", p_dev->socket->sock, p_dev->device_no); - if (!dev_name(&p_dev->dev)) - goto err_free; p_dev->devname = kasprintf(GFP_KERNEL, "pcmcia%s", dev_name(&p_dev->dev)); if (!p_dev->devname) goto err_free; @@ -581,6 +578,7 @@ static struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, pcmcia_device_query(p_dev); + dev_set_name(&p_dev->dev, "%d.%d", p_dev->socket->sock, p_dev->device_no); if (device_register(&p_dev->dev)) { mutex_lock(&s->ops_mutex); list_del(&p_dev->socket_device_list); -- 2.42.0