[PATCH] pinctrl: sirf: add missing put_device() in error handling path in sirfsoc_gpio_probe()

[yu kuai]

in sirfsoc_gpio_probe(), if of_find_device_by_node() succeed,
put_device() is missing in the error handling patch.

Signed-off-by: yu kuai <yuku...@huawei.com>
---
 drivers/pinctrl/sirf/pinctrl-sirf.c | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/drivers/pinctrl/sirf/pinctrl-sirf.c 
b/drivers/pinctrl/sirf/pinctrl-sirf.c
index 1ebcb957c654..63a287d5795f 100644
--- a/drivers/pinctrl/sirf/pinctrl-sirf.c
+++ b/drivers/pinctrl/sirf/pinctrl-sirf.c
@@ -794,13 +794,17 @@ static int sirfsoc_gpio_probe(struct device_node *np)
                return -ENODEV;
 
        sgpio = devm_kzalloc(&pdev->dev, sizeof(*sgpio), GFP_KERNEL);
-       if (!sgpio)
-               return -ENOMEM;
+       if (!sgpio) {
+               err = -ENOMEM;
+               goto out_put_device;
+       }
        spin_lock_init(&sgpio->lock);
 
        regs = of_iomap(np, 0);
-       if (!regs)
-               return -ENOMEM;
+       if (!regs) {
+               err = -ENOMEM;
+               goto out_put_device;
+       }
 
        sgpio->chip.gc.request = sirfsoc_gpio_request;
        sgpio->chip.gc.free = sirfsoc_gpio_free;
@@ -824,8 +828,10 @@ static int sirfsoc_gpio_probe(struct device_node *np)
        girq->parents = devm_kcalloc(&pdev->dev, SIRFSOC_GPIO_NO_OF_BANKS,
                                     sizeof(*girq->parents),
                                     GFP_KERNEL);
-       if (!girq->parents)
-               return -ENOMEM;
+       if (!girq->parents) {
+               err = -ENOMEM;
+               goto out_put_device;
+       }
        for (i = 0; i < SIRFSOC_GPIO_NO_OF_BANKS; i++) {
                bank = &sgpio->sgpio_bank[i];
                spin_lock_init(&bank->lock);
@@ -868,6 +874,8 @@ static int sirfsoc_gpio_probe(struct device_node *np)
        gpiochip_remove(&sgpio->chip.gc);
 out:
        iounmap(regs);
+out_put_device:
+       put_device(&pdev->dev);
        return err;
 }
 
-- 
2.25.4