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Signed-off-by: Peng Fan Reviewed-by: Jonathan Cameron --- drivers/pinctrl/ti/pinctrl-ti-iodelay.c | 43 +++++++++---------------- 1 file changed, 15 insertions(+), 28 deletions(-) diff --git a/drivers/pinctrl/ti/pinctrl-ti-iodelay.c b/drivers/pinctrl/ti/pinctrl-ti-iodelay.c index ef9758638501..f5e5a23d2226 100644 --- a/drivers/pinctrl/ti/pinctrl-ti-iodelay.c +++ b/drivers/pinctrl/ti/pinctrl-ti-iodelay.c @@ -822,53 +822,48 @@ MODULE_DEVICE_TABLE(of, ti_iodelay_of_match); static int ti_iodelay_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct device_node *np = of_node_get(dev->of_node); + struct device_node *np __free(device_node) = of_node_get(dev->of_node); struct resource *res; struct ti_iodelay_device *iod; - int ret = 0; + int ret; if (!np) { - ret = -EINVAL; dev_err(dev, "No OF node\n"); - goto exit_out; + return -EINVAL; } iod = devm_kzalloc(dev, sizeof(*iod), GFP_KERNEL); - if (!iod) { - ret = -ENOMEM; - goto exit_out; - } + if (!iod) + return -ENOMEM; + iod->dev = dev; iod->reg_data = device_get_match_data(dev); if (!iod->reg_data) { - ret = -EINVAL; dev_err(dev, "No DATA match\n"); - goto exit_out; + return -EINVAL; } /* So far We can assume there is only 1 bank of registers */ iod->reg_base = devm_platform_get_and_ioremap_resource(pdev, 0, &res); - if (IS_ERR(iod->reg_base)) { - ret = PTR_ERR(iod->reg_base); - goto exit_out; - } + if (IS_ERR(iod->reg_base)) + return PTR_ERR(iod->reg_base); + iod->phys_base = res->start; iod->regmap = devm_regmap_init_mmio(dev, iod->reg_base, iod->reg_data->regmap_config); if (IS_ERR(iod->regmap)) { dev_err(dev, "Regmap MMIO init failed.\n"); - ret = PTR_ERR(iod->regmap); - goto exit_out; + return PTR_ERR(iod->regmap); } ret = ti_iodelay_pinconf_init_dev(iod); if (ret) - goto exit_out; + return ret; ret = ti_iodelay_alloc_pins(dev, iod, res->start); if (ret) - goto exit_out; + return ret; iod->desc.pctlops = &ti_iodelay_pinctrl_ops; /* no pinmux ops - we are pinconf */ @@ -879,20 +874,12 @@ static int ti_iodelay_probe(struct platform_device *pdev) ret = devm_pinctrl_register_and_init(dev, &iod->desc, iod, &iod->pctl); if (ret) { dev_err(dev, "Failed to register pinctrl\n"); - goto exit_out; + return ret; } platform_set_drvdata(pdev, iod); - ret = pinctrl_enable(iod->pctl); - if (ret) - goto exit_out; - - return 0; - -exit_out: - of_node_put(np); - return ret; + return pinctrl_enable(iod->pctl); } /** From patchwork Thu Jun 27 13:17:20 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Peng Fan (OSS)" X-Patchwork-Id: 13714398 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 88E84C3064D for ; Thu, 27 Jun 2024 13:09:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; 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Thu, 27 Jun 2024 13:08:35 +0000 From: "Peng Fan (OSS)" To: linus.walleij@linaro.org Cc: dan.carpenter@linaro.org, linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, aisheng.dong@nxp.com, festevam@gmail.com, shawnguo@kernel.org, kernel@pengutronix.de, u.kleine-koenig@pengutronix.de, Peng Fan Subject: [PATCH V3 2/3] pinctrl: equilibrium: Use scope based of_node_put() cleanups Date: Thu, 27 Jun 2024 21:17:20 +0800 Message-Id: <20240627131721.678727-3-peng.fan@oss.nxp.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20240627131721.678727-1-peng.fan@oss.nxp.com> References: <20240627131721.678727-1-peng.fan@oss.nxp.com> X-ClientProxiedBy: SI2PR01CA0050.apcprd01.prod.exchangelabs.com (2603:1096:4:193::21) To AM6PR04MB5941.eurprd04.prod.outlook.com (2603:10a6:20b:9e::16) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AM6PR04MB5941:EE_|PA4PR04MB7549:EE_ X-MS-Office365-Filtering-Correlation-Id: 4c0b3c4e-ba80-45c1-28c3-08dc96aa4083 X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|52116014|366016|38350700014; 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Signed-off-by: Peng Fan Reviewed-by: Jonathan Cameron --- drivers/pinctrl/pinctrl-equilibrium.c | 21 +++++---------------- 1 file changed, 5 insertions(+), 16 deletions(-) diff --git a/drivers/pinctrl/pinctrl-equilibrium.c b/drivers/pinctrl/pinctrl-equilibrium.c index a6d089eaaae5..3a9a0f059090 100644 --- a/drivers/pinctrl/pinctrl-equilibrium.c +++ b/drivers/pinctrl/pinctrl-equilibrium.c @@ -588,7 +588,6 @@ static int funcs_utils(struct device *dev, struct pinfunction *funcs, unsigned int *nr_funcs, funcs_util_ops op) { struct device_node *node = dev->of_node; - struct device_node *np; struct property *prop; const char *fn_name; const char **groups; @@ -596,7 +595,7 @@ static int funcs_utils(struct device *dev, struct pinfunction *funcs, int i, j; i = 0; - for_each_child_of_node(node, np) { + for_each_child_of_node_scoped(node, np) { prop = of_find_property(np, "groups", NULL); if (!prop) continue; @@ -635,7 +634,6 @@ static int funcs_utils(struct device *dev, struct pinfunction *funcs, break; default: - of_node_put(np); return -EINVAL; } i++; @@ -708,11 +706,10 @@ static int eqbr_build_groups(struct eqbr_pinctrl_drv_data *drvdata) struct device_node *node = dev->of_node; unsigned int *pins, *pinmux, pin_id, pinmux_id; struct pingroup group, *grp = &group; - struct device_node *np; struct property *prop; int j, err; - for_each_child_of_node(node, np) { + for_each_child_of_node_scoped(node, np) { prop = of_find_property(np, "groups", NULL); if (!prop) continue; @@ -720,42 +717,35 @@ static int eqbr_build_groups(struct eqbr_pinctrl_drv_data *drvdata) err = of_property_count_u32_elems(np, "pins"); if (err < 0) { dev_err(dev, "No pins in the group: %s\n", prop->name); - of_node_put(np); return err; } grp->npins = err; grp->name = prop->value; pins = devm_kcalloc(dev, grp->npins, sizeof(*pins), GFP_KERNEL); - if (!pins) { - of_node_put(np); + if (!pins) return -ENOMEM; - } + grp->pins = pins; pinmux = devm_kcalloc(dev, grp->npins, sizeof(*pinmux), GFP_KERNEL); - if (!pinmux) { - of_node_put(np); + if (!pinmux) return -ENOMEM; - } for (j = 0; j < grp->npins; j++) { if (of_property_read_u32_index(np, "pins", j, &pin_id)) { dev_err(dev, "Group %s: Read intel pins id failed\n", grp->name); - of_node_put(np); return -EINVAL; } if (pin_id >= drvdata->pctl_desc.npins) { dev_err(dev, "Group %s: Invalid pin ID, idx: %d, pin %u\n", grp->name, j, pin_id); - of_node_put(np); return -EINVAL; } pins[j] = pin_id; if (of_property_read_u32_index(np, "pinmux", j, &pinmux_id)) { dev_err(dev, "Group %s: Read intel pinmux id failed\n", grp->name); - of_node_put(np); return -EINVAL; } pinmux[j] = pinmux_id; @@ -766,7 +756,6 @@ static int eqbr_build_groups(struct eqbr_pinctrl_drv_data *drvdata) pinmux); if (err < 0) { dev_err(dev, "Failed to register group %s\n", grp->name); - of_node_put(np); return err; } memset(&group, 0, sizeof(group)); From patchwork Thu Jun 27 13:17:21 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Peng Fan (OSS)" X-Patchwork-Id: 13714399 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 CB122C2BD09 for ; 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Signed-off-by: Peng Fan Reviewed-by: Jonathan Cameron --- drivers/pinctrl/freescale/pinctrl-imx.c | 25 ++++++------------- drivers/pinctrl/freescale/pinctrl-imx1-core.c | 16 ++++-------- drivers/pinctrl/freescale/pinctrl-mxs.c | 14 +++-------- 3 files changed, 16 insertions(+), 39 deletions(-) diff --git a/drivers/pinctrl/freescale/pinctrl-imx.c b/drivers/pinctrl/freescale/pinctrl-imx.c index 1ccdeb86d8a7..9c2680df082c 100644 --- a/drivers/pinctrl/freescale/pinctrl-imx.c +++ b/drivers/pinctrl/freescale/pinctrl-imx.c @@ -580,7 +580,6 @@ static int imx_pinctrl_parse_functions(struct device_node *np, u32 index) { struct pinctrl_dev *pctl = ipctl->pctl; - struct device_node *child; struct function_desc *func; struct group_desc *grp; const char **group_names; @@ -605,17 +604,15 @@ static int imx_pinctrl_parse_functions(struct device_node *np, if (!group_names) return -ENOMEM; i = 0; - for_each_child_of_node(np, child) + for_each_child_of_node_scoped(np, child) group_names[i++] = child->name; func->func.groups = group_names; i = 0; - for_each_child_of_node(np, child) { + for_each_child_of_node_scoped(np, child) { grp = devm_kzalloc(ipctl->dev, sizeof(*grp), GFP_KERNEL); - if (!grp) { - of_node_put(child); + if (!grp) return -ENOMEM; - } mutex_lock(&ipctl->mutex); radix_tree_insert(&pctl->pin_group_tree, @@ -635,21 +632,13 @@ static int imx_pinctrl_parse_functions(struct device_node *np, */ static bool imx_pinctrl_dt_is_flat_functions(struct device_node *np) { - struct device_node *function_np; - struct device_node *pinctrl_np; - - for_each_child_of_node(np, function_np) { - if (of_property_read_bool(function_np, "fsl,pins")) { - of_node_put(function_np); + for_each_child_of_node_scoped(np, function_np) { + if (of_property_read_bool(function_np, "fsl,pins")) return true; - } - for_each_child_of_node(function_np, pinctrl_np) { - if (of_property_read_bool(pinctrl_np, "fsl,pins")) { - of_node_put(pinctrl_np); - of_node_put(function_np); + for_each_child_of_node_scoped(function_np, pinctrl_np) { + if (of_property_read_bool(pinctrl_np, "fsl,pins")) return false; - } } } diff --git a/drivers/pinctrl/freescale/pinctrl-imx1-core.c b/drivers/pinctrl/freescale/pinctrl-imx1-core.c index 90c696046b38..af1ccfc90bff 100644 --- a/drivers/pinctrl/freescale/pinctrl-imx1-core.c +++ b/drivers/pinctrl/freescale/pinctrl-imx1-core.c @@ -508,7 +508,6 @@ static int imx1_pinctrl_parse_functions(struct device_node *np, struct imx1_pinctrl_soc_info *info, u32 index) { - struct device_node *child; struct imx1_pmx_func *func; struct imx1_pin_group *grp; int ret; @@ -531,14 +530,12 @@ static int imx1_pinctrl_parse_functions(struct device_node *np, if (!func->groups) return -ENOMEM; - for_each_child_of_node(np, child) { + for_each_child_of_node_scoped(np, child) { func->groups[i] = child->name; grp = &info->groups[grp_index++]; ret = imx1_pinctrl_parse_groups(child, grp, info, i++); - if (ret == -ENOMEM) { - of_node_put(child); + if (ret == -ENOMEM) return ret; - } } return 0; @@ -548,7 +545,6 @@ static int imx1_pinctrl_parse_dt(struct platform_device *pdev, struct imx1_pinctrl *pctl, struct imx1_pinctrl_soc_info *info) { struct device_node *np = pdev->dev.of_node; - struct device_node *child; int ret; u32 nfuncs = 0; u32 ngroups = 0; @@ -557,7 +553,7 @@ static int imx1_pinctrl_parse_dt(struct platform_device *pdev, if (!np) return -ENODEV; - for_each_child_of_node(np, child) { + for_each_child_of_node_scoped(np, child) { ++nfuncs; ngroups += of_get_child_count(child); } @@ -579,12 +575,10 @@ static int imx1_pinctrl_parse_dt(struct platform_device *pdev, if (!info->functions || !info->groups) return -ENOMEM; - for_each_child_of_node(np, child) { + for_each_child_of_node_scoped(np, child) { ret = imx1_pinctrl_parse_functions(child, info, ifunc++); - if (ret == -ENOMEM) { - of_node_put(child); + if (ret == -ENOMEM) return -ENOMEM; - } } return 0; diff --git a/drivers/pinctrl/freescale/pinctrl-mxs.c b/drivers/pinctrl/freescale/pinctrl-mxs.c index 4813a9e16cb3..edb242d30609 100644 --- a/drivers/pinctrl/freescale/pinctrl-mxs.c +++ b/drivers/pinctrl/freescale/pinctrl-mxs.c @@ -490,16 +490,14 @@ static int mxs_pinctrl_probe_dt(struct platform_device *pdev, /* Get groups for each function */ idxf = 0; fn = fnull; - for_each_child_of_node(np, child) { + for_each_child_of_node_scoped(np, child) { if (is_mxs_gpio(child)) continue; if (of_property_read_u32(child, "reg", &val)) { ret = mxs_pinctrl_parse_group(pdev, child, idxg++, NULL); - if (ret) { - of_node_put(child); + if (ret) return ret; - } continue; } @@ -509,19 +507,15 @@ static int mxs_pinctrl_probe_dt(struct platform_device *pdev, f->ngroups, sizeof(*f->groups), GFP_KERNEL); - if (!f->groups) { - of_node_put(child); + if (!f->groups) return -ENOMEM; - } fn = child->name; i = 0; } ret = mxs_pinctrl_parse_group(pdev, child, idxg++, &f->groups[i++]); - if (ret) { - of_node_put(child); + if (ret) return ret; - } } return 0;