From patchwork Tue Nov 17 01:13:22 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Kuai X-Patchwork-Id: 11911091 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 A53C7138B for ; Tue, 17 Nov 2020 01:10:18 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 69252246AE for ; Tue, 17 Nov 2020 01:10:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="f8+mD6my" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 69252246AE 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-amlogic-bounces+patchwork-linux-amlogic=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.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=K/Ppgq+7vTvogln9fayEXJ+rkcANyQH/tzefg2RzeTY=; b=f8+mD6myBVCF69mvOEYtl+WSCT xZWtMuKqWtfWeFCsWGmzrerG/z8cPknIyvxE0hMJhAFp+0r3HHz6TsoJOJoiXIb4SJNJORN9dv4MW ySM6Iz+Zw75tSRgfKIlzlxH0OihfYLd8iANYoxU1s3hRuAxjYSBCofN/vg3FtpwFXxRTgPkS9GqMV tZ+t6ZHAHVAlHdNga7Zb7LUl5ZP1l3wuK7TWaDf2EuzhqKYf3TXHRehvzcZfkcIJVyFDzsmEAyyon le0MLrUEfr3lBI4qKX2odkxtpTIcE66ELcELHU5UdUr5SFKPpuyFKusaGIAvtAQO1CeXtZ/SpEeEW jSX/dlyA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kepVW-00042K-0a; Tue, 17 Nov 2020 01:10:06 +0000 Received: from szxga06-in.huawei.com ([45.249.212.32]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kepVS-00041B-0R; Tue, 17 Nov 2020 01:10:04 +0000 Received: from DGGEMS410-HUB.china.huawei.com (unknown [172.30.72.58]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4CZnsk0yS7zhZyY; Tue, 17 Nov 2020 09:09:46 +0800 (CST) Received: from huawei.com (10.175.127.227) by DGGEMS410-HUB.china.huawei.com (10.3.19.210) with Microsoft SMTP Server id 14.3.487.0; Tue, 17 Nov 2020 09:09:46 +0800 From: Yu Kuai To: Subject: [PATCH] soc: amlogic: canvas: add missing put_device() call in meson_canvas_get() Date: Tue, 17 Nov 2020 09:13:22 +0800 Message-ID: <20201117011322.522477-1-yukuai3@huawei.com> X-Mailer: git-send-email 2.25.4 MIME-Version: 1.0 X-Originating-IP: [10.175.127.227] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201116_201002_309540_D6E2B74E X-CRM114-Status: UNSURE ( 9.42 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.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_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.0 RCVD_IN_MSPIKE_WL Mailspike good senders X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: yi.zhang@huawei.com, linux-kernel@vger.kernel.org, yukuai3@huawei.com, linux-amlogic@lists.infradead.org, zhangxiaoxu5@huawei.com, linux-arm-kernel@lists.infradead.org Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+patchwork-linux-amlogic=patchwork.kernel.org@lists.infradead.org if of_find_device_by_node() succeed, meson_canvas_get() doesn't have a corresponding put_device(). Thus add put_device() to fix the exception handling for this function implementation. Fixes: commit 382f8be04551 ("soc: amlogic: canvas: Fix meson_canvas_get when probe failed") Signed-off-by: Yu Kuai Reviewed-by: Neil Armstrong --- drivers/soc/amlogic/meson-canvas.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/soc/amlogic/meson-canvas.c b/drivers/soc/amlogic/meson-canvas.c index c655f5f92b12..d0329ad170d1 100644 --- a/drivers/soc/amlogic/meson-canvas.c +++ b/drivers/soc/amlogic/meson-canvas.c @@ -72,8 +72,10 @@ struct meson_canvas *meson_canvas_get(struct device *dev) * current state, this driver probe cannot return -EPROBE_DEFER */ canvas = dev_get_drvdata(&canvas_pdev->dev); - if (!canvas) + if (!canvas) { + put_device(&canvas_pdev->dev); return ERR_PTR(-EINVAL); + } return canvas; }