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Message-ID: <20220421055356.8163-1-wupeng58@huawei.com>
Date: Thu, 21 Apr 2022 05:53:56 +0000
From: Peng Wu <wupeng58@...wei.com>
To: <j.neuschaefer@....net>, <linus.walleij@...aro.org>
CC: <openbmc@...ts.ozlabs.org>, <linux-gpio@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <wupeng58@...wei.com>,
<liwei391@...wei.com>
Subject: [PATCH] pinctrl: nuvoton: Add missing fwnode_handle_put in wpcm450_gpio_register
In one of the error paths of the device_for_each_child_node() loop
in wpcm450_gpio_register, add missing call to fwnode_handle_put.
Signed-off-by: Peng Wu <wupeng58@...wei.com>
---
drivers/pinctrl/nuvoton/pinctrl-wpcm450.c | 23 +++++++++++++++++------
1 file changed, 17 insertions(+), 6 deletions(-)
diff --git a/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c b/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c
index 0dbeb91f0bf2..de4388b512d7 100644
--- a/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c
+++ b/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c
@@ -1038,15 +1038,19 @@ static int wpcm450_gpio_register(struct platform_device *pdev,
continue;
ret = fwnode_property_read_u32(child, "reg", ®);
- if (ret < 0)
+ if (ret < 0) {
+ fwnode_handle_put(child);
return ret;
+ }
gpio = &pctrl->gpio_bank[reg];
gpio->pctrl = pctrl;
- if (reg >= WPCM450_NUM_BANKS)
+ if (reg >= WPCM450_NUM_BANKS) {
+ fwnode_handle_put(child);
return dev_err_probe(dev, -EINVAL,
- "GPIO index %d out of range!\n", reg);
+ "GPIO index %d out of range!\n", reg);
+ }
bank = &wpcm450_banks[reg];
gpio->bank = bank;
@@ -1060,8 +1064,10 @@ static int wpcm450_gpio_register(struct platform_device *pdev,
}
ret = bgpio_init(&gpio->gc, dev, 4,
dat, set, NULL, dirout, NULL, flags);
- if (ret < 0)
+ if (ret < 0) {
+ fwnode_handle_put(child);
return dev_err_probe(dev, ret, "GPIO initialization failed\n");
+ }
gpio->gc.ngpio = bank->length;
gpio->gc.set_config = wpcm450_gpio_set_config;
@@ -1074,8 +1080,11 @@ static int wpcm450_gpio_register(struct platform_device *pdev,
girq->parent_handler = wpcm450_gpio_irqhandler;
girq->parents = devm_kcalloc(dev, WPCM450_NUM_GPIO_IRQS,
sizeof(*girq->parents), GFP_KERNEL);
- if (!girq->parents)
+ if (!girq->parents) {
+ fwnode_handle_put(child);
return -ENOMEM;
+ }
+
girq->default_type = IRQ_TYPE_NONE;
girq->handler = handle_bad_irq;
@@ -1091,8 +1100,10 @@ static int wpcm450_gpio_register(struct platform_device *pdev,
}
ret = devm_gpiochip_add_data(dev, &gpio->gc, gpio);
- if (ret)
+ if (ret) {
+ fwnode_handle_put(child);
return dev_err_probe(dev, ret, "Failed to add GPIO chip\n");
+ }
}
return 0;
--
2.17.1
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