linux-kernel - [PATCH 5.15 21/35] gpio: mockup: remove gpio debugfs when remove device

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Message-Id: <20220916100447.835275499@linuxfoundation.org>
Date:   Fri, 16 Sep 2022 12:08:44 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Wei Yongjun <weiyongjun1@...wei.com>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.15 21/35] gpio: mockup: remove gpio debugfs when remove device

From: Wei Yongjun <weiyongjun1@...wei.com>

[ Upstream commit 303e6da99429510b1e4edf833afe90ac8542e747 ]

GPIO mockup debugfs is created in gpio_mockup_probe() but
forgot to remove when remove device. This patch add a devm
managed callback for removing them.

Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
Signed-off-by: Bartosz Golaszewski <brgl@...ev.pl>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpio/gpio-mockup.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-mockup.c b/drivers/gpio/gpio-mockup.c
index d26bff29157b5..369a832d96203 100644
--- a/drivers/gpio/gpio-mockup.c
+++ b/drivers/gpio/gpio-mockup.c
@@ -373,6 +373,13 @@ static void gpio_mockup_debugfs_setup(struct device *dev,
 	}
 }
 
+static void gpio_mockup_debugfs_cleanup(void *data)
+{
+	struct gpio_mockup_chip *chip = data;
+
+	debugfs_remove_recursive(chip->dbg_dir);
+}
+
 static void gpio_mockup_dispose_mappings(void *data)
 {
 	struct gpio_mockup_chip *chip = data;
@@ -455,7 +462,7 @@ static int gpio_mockup_probe(struct platform_device *pdev)
 
 	gpio_mockup_debugfs_setup(dev, chip);
 
-	return 0;
+	return devm_add_action_or_reset(dev, gpio_mockup_debugfs_cleanup, chip);
 }
 
 static const struct of_device_id gpio_mockup_of_match[] = {
-- 
2.35.1