From: Peng Fan <peng.fan@xxxxxxx> Use scope based of_node_put() cleanup to simplify code. Signed-off-by: Peng Fan <peng.fan@xxxxxxx> --- 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; -- 2.37.1