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Subject[PATCH 5.10 101/122] gpio: mpc8xxx: Use devm_gpiochip_add_data() to simplify the code and avoid a leak
Date
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit 889a1b3f35db6ba5ba6a0c23a3a55594570b6a17 ]

If an error occurs after a 'gpiochip_add_data()' call it must be undone by
a corresponding 'gpiochip_remove()' as already done in the remove function.

To simplify the code a fix a leak in the error handling path of the probe,
use the managed version instead (i.e. 'devm_gpiochip_add_data()')

Fixes: 698b8eeaed72 ("gpio/mpc8xxx: change irq handler from chained to normal")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpio/gpio-mpc8xxx.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c
index a4983c5d1f16..023b99bf098d 100644
--- a/drivers/gpio/gpio-mpc8xxx.c
+++ b/drivers/gpio/gpio-mpc8xxx.c
@@ -374,7 +374,7 @@ static int mpc8xxx_probe(struct platform_device *pdev)
of_device_is_compatible(np, "fsl,ls1088a-gpio"))
gc->write_reg(mpc8xxx_gc->regs + GPIO_IBE, 0xffffffff);

- ret = gpiochip_add_data(gc, mpc8xxx_gc);
+ ret = devm_gpiochip_add_data(&pdev->dev, gc, mpc8xxx_gc);
if (ret) {
pr_err("%pOF: GPIO chip registration failed with status %d\n",
np, ret);
@@ -419,8 +419,6 @@ static int mpc8xxx_remove(struct platform_device *pdev)
irq_domain_remove(mpc8xxx_gc->irq);
}

- gpiochip_remove(&mpc8xxx_gc->gc);
-
return 0;
}

--
2.30.2


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