From patchwork Tue Aug 27 11:46:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 13779366 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 945F5C54735 for ; Tue, 27 Aug 2024 11:41:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:To:From:Reply-To:Cc:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=4X6/RxMpsbE97p+Qhg9yQOSsLMtRv4l/pqbipQn/Ulk=; b=BAkdsbIxfbtJWKYjnL3ZMTsKhw zgEefSZheqg5X/57EZ3IGmBMNzaYSr59EFZHMBGwbR22iP4FICWcan4kRltshHDenU//8qOEriUOf jF3cgc4XCpnNFkaVF3npyoKqbU0RpNSHLjxjCURP/W10Q/xvqo8I0/ZMGDqnywi8GWhecvqG2CILh /ucoWtPsPR2I+ms/sHfaqhN3XG1YxtQ2H3rrmGGIFO++doTo0bwDTs+JHjyeg89xLymRgm2eOxn4E xwYFDsUTvVqpfEaee21InErjDBqWqtM+pPYs4Ua9wa50BYldyFfmKQAfKVx4fGbiGnH+J33PfxQLq MVx574iQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1siuZy-0000000B40i-423I; Tue, 27 Aug 2024 11:41:42 +0000 Received: from szxga04-in.huawei.com ([45.249.212.190]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1siuWj-0000000B2gk-3MEG for linux-arm-kernel@lists.infradead.org; Tue, 27 Aug 2024 11:38:24 +0000 Received: from mail.maildlp.com (unknown [172.19.88.163]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4WtQXD0CCYz2Cnkc; Tue, 27 Aug 2024 19:38:04 +0800 (CST) Received: from kwepemh500013.china.huawei.com (unknown [7.202.181.146]) by mail.maildlp.com (Postfix) with ESMTPS id 16C9A180019; Tue, 27 Aug 2024 19:38:14 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemh500013.china.huawei.com (7.202.181.146) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Tue, 27 Aug 2024 19:38:13 +0800 From: Jinjie Ruan To: , , , , , , , , , , , , , , , , , , , , Subject: [PATCH -next 3/8] soc: fsl: cpm1: qmc: Simplify with scoped for each OF child Date: Tue, 27 Aug 2024 19:46:02 +0800 Message-ID: <20240827114607.4019972-4-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240827114607.4019972-1-ruanjinjie@huawei.com> References: <20240827114607.4019972-1-ruanjinjie@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.90.53.73] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To kwepemh500013.china.huawei.com (7.202.181.146) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240827_043822_642920_5D1FC9E3 X-CRM114-Status: GOOD ( 11.12 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Use scoped for_each_available_child_of_node_scoped() when iterating over device nodes to make code a bit simpler. Signed-off-by: Jinjie Ruan --- drivers/soc/fsl/qe/qmc.c | 13 ++----------- 1 file changed, 2 insertions(+), 11 deletions(-) diff --git a/drivers/soc/fsl/qe/qmc.c b/drivers/soc/fsl/qe/qmc.c index 76bb496305a0..d5937b5b5f15 100644 --- a/drivers/soc/fsl/qe/qmc.c +++ b/drivers/soc/fsl/qe/qmc.c @@ -1174,31 +1174,26 @@ static unsigned int qmc_nb_chans(struct qmc *qmc) static int qmc_of_parse_chans(struct qmc *qmc, struct device_node *np) { - struct device_node *chan_np; struct qmc_chan *chan; const char *mode; u32 chan_id; u64 ts_mask; int ret; - for_each_available_child_of_node(np, chan_np) { + for_each_available_child_of_node_scoped(np, chan_np) { ret = of_property_read_u32(chan_np, "reg", &chan_id); if (ret) { dev_err(qmc->dev, "%pOF: failed to read reg\n", chan_np); - of_node_put(chan_np); return ret; } if (chan_id > 63) { dev_err(qmc->dev, "%pOF: Invalid chan_id\n", chan_np); - of_node_put(chan_np); return -EINVAL; } chan = devm_kzalloc(qmc->dev, sizeof(*chan), GFP_KERNEL); - if (!chan) { - of_node_put(chan_np); + if (!chan) return -ENOMEM; - } chan->id = chan_id; spin_lock_init(&chan->ts_lock); @@ -1209,7 +1204,6 @@ static int qmc_of_parse_chans(struct qmc *qmc, struct device_node *np) if (ret) { dev_err(qmc->dev, "%pOF: failed to read fsl,tx-ts-mask\n", chan_np); - of_node_put(chan_np); return ret; } chan->tx_ts_mask_avail = ts_mask; @@ -1219,7 +1213,6 @@ static int qmc_of_parse_chans(struct qmc *qmc, struct device_node *np) if (ret) { dev_err(qmc->dev, "%pOF: failed to read fsl,rx-ts-mask\n", chan_np); - of_node_put(chan_np); return ret; } chan->rx_ts_mask_avail = ts_mask; @@ -1230,7 +1223,6 @@ static int qmc_of_parse_chans(struct qmc *qmc, struct device_node *np) if (ret && ret != -EINVAL) { dev_err(qmc->dev, "%pOF: failed to read fsl,operational-mode\n", chan_np); - of_node_put(chan_np); return ret; } if (!strcmp(mode, "transparent")) { @@ -1240,7 +1232,6 @@ static int qmc_of_parse_chans(struct qmc *qmc, struct device_node *np) } else { dev_err(qmc->dev, "%pOF: Invalid fsl,operational-mode (%s)\n", chan_np, mode); - of_node_put(chan_np); return -EINVAL; }