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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 9FE12C433EF for ; Fri, 22 Apr 2022 06:28:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:From:References:CC:To: Subject:MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=QXj/9phHs4PIbgnEtP4dk07mfXKpQRul1CP+/rVT4io=; b=ohCGeZUdcWlpD6 R3V+LisO+FmStZUuLhgs7e86aiiSawQL7rrRCoJZNhGj/8gv/07NuPNBAuV1whvAyVjoIus/B1asJ FYiriHx+2McDBA+w2l441n9qb/PmiPPTKVLLvWnZQy5LqunoG8qB2eHljnUN8MZZ7YOabAggthayO jV2fKkyJsUZ7jcv3tdg+qljrLjj4hyrqGAykofmzKbLZvR4hdpvab3Wo5YBFcMBZ65FumPhCaCNbm yLhD1k5jLVEvNNof/CUa/bwugfQ6ECVI938h4VuPI1xdLVTst88WJB5TAdEgSdFsfG3Ongk/U2Yjo PgE6WxBEIP1FNCcl41sA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nhml5-00GX8w-Ib; Fri, 22 Apr 2022 06:27:11 +0000 Received: from edge01.meizu.com ([14.29.68.187] helo=mail.meizu.com) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nhmbv-00GST5-Og for linux-arm-kernel@lists.infradead.org; Fri, 22 Apr 2022 06:17:45 +0000 Received: from IT-EXMB-1-125.meizu.com (172.16.1.125) by mz-mail04.meizu.com (172.16.1.16) with Microsoft SMTP Server (TLS) id 14.3.487.0; Fri, 22 Apr 2022 14:17:25 +0800 Received: from [172.16.137.70] (172.16.137.70) by IT-EXMB-1-125.meizu.com (172.16.1.125) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.14; Fri, 22 Apr 2022 14:17:19 +0800 Message-ID: Date: Fri, 22 Apr 2022 14:17:18 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.0 Subject: Re: [PATCH] dmaengine: imx-sdma: Remove useless null check before call of_node_put() To: Vinod Koul CC: Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , , , References: <1650509390-26877-1-git-send-email-baihaowen@meizu.com> From: baihaowen In-Reply-To: X-Originating-IP: [172.16.137.70] X-ClientProxiedBy: IT-EXMB-1-126.meizu.com (172.16.1.126) To IT-EXMB-1-125.meizu.com (172.16.1.125) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220421_231744_151396_109BDDFA X-CRM114-Status: GOOD ( 10.28 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 5ZyoIDQvMjIvMjIgMjoxMCBQTSwgVmlub2QgS291bCDlhpnpgZM6Cj4gT24gMjEtMDQtMjIsIDEw OjQ5LCBIYW93ZW4gQmFpIHdyb3RlOgo+PiBObyBuZWVkIHRvIGFkZCBudWxsIGNoZWNrIGJlZm9y ZSBjYWxsIG9mX25vZGVfcHV0KCksIHNpbmNlIHRoZQo+PiBpbXBsZW1lbnRhdGlvbiBvZiBvZl9u b2RlX3B1dCgpIGhhcyBkb25lIGl0Lgo+Pgo+PiBTaWduZWQtb2ZmLWJ5OiBIYW93ZW4gQmFpIDxi YWloYW93ZW5AbWVpenUuY29tPgo+PiAtLS0KPj4gIGRyaXZlcnMvZG1hL2lteC1zZG1hLmMgfCAz ICstLQo+PiAgMSBmaWxlIGNoYW5nZWQsIDEgaW5zZXJ0aW9uKCspLCAyIGRlbGV0aW9ucygtKQo+ Pgo+PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9kbWEvaW14LXNkbWEuYyBiL2RyaXZlcnMvZG1hL2lt eC1zZG1hLmMKPj4gaW5kZXggNjE5NmE3YjM5NTZiLi5iOGExMjk5YjkzZjAgMTAwNjQ0Cj4+IC0t LSBhL2RyaXZlcnMvZG1hL2lteC1zZG1hLmMKPj4gKysrIGIvZHJpdmVycy9kbWEvaW14LXNkbWEu Ywo+PiBAQCAtMTkzMyw4ICsxOTMzLDcgQEAgc3RhdGljIGludCBzZG1hX2V2ZW50X3JlbWFwKHN0 cnVjdCBzZG1hX2VuZ2luZSAqc2RtYSkKPj4gIAl9Cj4+ICAKPj4gIG91dDoKPj4gLQlpZiAoZ3By X25wKQo+PiAtCQlvZl9ub2RlX3B1dChncHJfbnApOwo+PiArCW9mX25vZGVfcHV0KGdwcl9ucCk7 Cj4gdGhpcyBpcyBpbmNvcnJlY3QgYXMgaXQgaXMgY2FsbGVkIG9uIGVycm9yIGNhc2UKPgo+CkV2 ZW4gdGhyb3VnaCBpdCBpcyBjYWxsZWQgb24gZXJyb3IgY2FzZSwgZ3ByX25wPW51bGwsIGJ1dMKg IG9mX25vZGVfcHV0CmRpZCBhIG51bGwgY2hlY2suCnZvaWQgb2Zfbm9kZV9wdXQoc3RydWN0IGRl dmljZV9ub2RlICpub2RlKQoKeyBpZiAobm9kZSkga29iamVjdF9wdXQoJm5vZGUtPmtvYmopOyB9 CgotLSAKSGFvd2VuIEJhaQoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fCmxpbnV4LWFybS1rZXJuZWwgbWFpbGluZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxA bGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xp c3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK