linux-kernel - [PATCH] pinctrl: don't put the reference to GPIO device in pinctrl_pins

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Message-Id: <20240223123214.288181-1-brgl@bgdev.pl>
Date: Fri, 23 Feb 2024 13:32:14 +0100
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Linus Walleij <linus.walleij@...aro.org>
Cc: linux-gpio@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
	David Arcari <darcari@...hat.com>
Subject: [PATCH] pinctrl: don't put the reference to GPIO device in pinctrl_pins_show()

From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>

The call to gpiod_to_gpio_device() does not increase the reference count
of the GPIO device struct so it must not be decreased. Remove the buggy
__free() decorator.

Fixes: 524fc108b895 ("pinctrl: stop using gpiod_to_chip()")
Reported-by: David Arcari <darcari@...hat.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
 drivers/pinctrl/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index ee56856cb80c..bbcdece83bf4 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -1644,7 +1644,7 @@ static int pinctrl_pins_show(struct seq_file *s, void *what)
 	const struct pinctrl_ops *ops = pctldev->desc->pctlops;
 	unsigned int i, pin;
 #ifdef CONFIG_GPIOLIB
-	struct gpio_device *gdev __free(gpio_device_put) = NULL;
+	struct gpio_device *gdev = NULL;
 	struct pinctrl_gpio_range *range;
 	int gpio_num;
 #endif
-- 
2.40.1