From patchwork Tue Jun 2 12:29:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Kuai X-Patchwork-Id: 11583739 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 5E7EC1392 for ; Tue, 2 Jun 2020 12:30:14 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 201622053B for ; Tue, 2 Jun 2020 12:30:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="gwinnIdq" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 201622053B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=CwB/ylH163XCUbLZoD28lrrLIPACMdTI9jZoouERdAM=; b=gwinnIdqxUQxfc +8tmL+TFQpvFVh8o6XSoYZbiIgFndsFto+3WHKfiOCsf+Hl0n9JkmioyBaq0Ws1MEBf7Fn9uQItbN yues6svx7Off8VFqXG7ljDpIJErpfhukWqs6dcfmM6qIoavJx6Xh49L1vaSmz1rM3LWfGq0XGiyOc Qk+Q1wY0oLA4HU9tB3EzEo65dHYjJT8qERVG4c2n4wSmI5tk9A3o4dFFvLeJ0iP3Xj4w7gN1++lZC wj6XHF1ah9bhb8zs3Y1jaHdHYpu3L4bdD/tSreS2M6MJWpkdeN4pYcKBa8ZSLPxIznZuLESNcWQd0 S1mQoskuXStwwWfo4ECQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jg63P-0003t1-JA; Tue, 02 Jun 2020 12:30:03 +0000 Received: from szxga06-in.huawei.com ([45.249.212.32] helo=huawei.com) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jg63K-0003lr-HL for linux-arm-kernel@lists.infradead.org; Tue, 02 Jun 2020 12:30:00 +0000 Received: from DGGEMS407-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id D7958EC8F4709A17E87D; Tue, 2 Jun 2020 20:29:45 +0800 (CST) Received: from huawei.com (10.175.104.175) by DGGEMS407-HUB.china.huawei.com (10.3.19.207) with Microsoft SMTP Server id 14.3.487.0; Tue, 2 Jun 2020 20:29:40 +0800 From: yu kuai To: Subject: [PATCH] pinctrl: sirf: add missing put_device() in error handling path in sirfsoc_gpio_probe() Date: Tue, 2 Jun 2020 20:29:21 +0800 Message-ID: <20200602122921.707395-1-yukuai3@huawei.com> X-Mailer: git-send-email 2.25.4 MIME-Version: 1.0 X-Originating-IP: [10.175.104.175] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200602_052959_146001_7BB4CEE4 X-CRM114-Status: GOOD ( 10.78 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [45.249.212.32 listed in list.dnswl.org] 0.0 RCVD_IN_MSPIKE_H4 RBL: Very Good reputation (+4) [45.249.212.32 listed in wl.mailspike.net] -0.0 SPF_PASS SPF: sender matches SPF record -0.0 SPF_HELO_PASS SPF: HELO matches SPF record 0.0 RCVD_IN_MSPIKE_WL Mailspike good senders X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-gpio@vger.kernel.org, yi.zhang@huawei.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, yukuai3@huawei.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org in sirfsoc_gpio_probe(), if of_find_device_by_node() succeed, put_device() is missing in the error handling patch. Signed-off-by: yu kuai --- drivers/pinctrl/sirf/pinctrl-sirf.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) diff --git a/drivers/pinctrl/sirf/pinctrl-sirf.c b/drivers/pinctrl/sirf/pinctrl-sirf.c index 1ebcb957c654..63a287d5795f 100644 --- a/drivers/pinctrl/sirf/pinctrl-sirf.c +++ b/drivers/pinctrl/sirf/pinctrl-sirf.c @@ -794,13 +794,17 @@ static int sirfsoc_gpio_probe(struct device_node *np) return -ENODEV; sgpio = devm_kzalloc(&pdev->dev, sizeof(*sgpio), GFP_KERNEL); - if (!sgpio) - return -ENOMEM; + if (!sgpio) { + err = -ENOMEM; + goto out_put_device; + } spin_lock_init(&sgpio->lock); regs = of_iomap(np, 0); - if (!regs) - return -ENOMEM; + if (!regs) { + err = -ENOMEM; + goto out_put_device; + } sgpio->chip.gc.request = sirfsoc_gpio_request; sgpio->chip.gc.free = sirfsoc_gpio_free; @@ -824,8 +828,10 @@ static int sirfsoc_gpio_probe(struct device_node *np) girq->parents = devm_kcalloc(&pdev->dev, SIRFSOC_GPIO_NO_OF_BANKS, sizeof(*girq->parents), GFP_KERNEL); - if (!girq->parents) - return -ENOMEM; + if (!girq->parents) { + err = -ENOMEM; + goto out_put_device; + } for (i = 0; i < SIRFSOC_GPIO_NO_OF_BANKS; i++) { bank = &sgpio->sgpio_bank[i]; spin_lock_init(&bank->lock); @@ -868,6 +874,8 @@ static int sirfsoc_gpio_probe(struct device_node *np) gpiochip_remove(&sgpio->chip.gc); out: iounmap(regs); +out_put_device: + put_device(&pdev->dev); return err; }