linux-kernel - [PATCH 1/4] mfd: asic3: Make asic3_gpio

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Date:   Mon, 30 May 2022 21:24:27 +0200
From:   Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     linux-kernel@...r.kernel.org, kernel@...gutronix.de
Subject: [PATCH 1/4] mfd: asic3: Make asic3_gpio_remove() return void

Up to now asic3_gpio_remove() returns zero unconditionally. This makes it
easier to see in the caller that there is no error to handle.

This is a preparation for making platform remove callbacks return void.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
---
Side note: asic3_mfd_probe() which is called by asic3_probe() could
return an error, but this isn't handled.
---
 drivers/mfd/asic3.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c
index 56338f9dbd0b..4fb7e35eb5ed 100644
--- a/drivers/mfd/asic3.c
+++ b/drivers/mfd/asic3.c
@@ -596,12 +596,11 @@ static __init int asic3_gpio_probe(struct platform_device *pdev,
 	return gpiochip_add_data(&asic->gpio, asic);
 }
 
-static int asic3_gpio_remove(struct platform_device *pdev)
+static void asic3_gpio_remove(struct platform_device *pdev)
 {
 	struct asic3 *asic = platform_get_drvdata(pdev);
 
 	gpiochip_remove(&asic->gpio);
-	return 0;
 }
 
 static void asic3_clk_enable(struct asic3 *asic, struct asic3_clk *clk)
@@ -1030,7 +1029,6 @@ static int __init asic3_probe(struct platform_device *pdev)
 
 static int asic3_remove(struct platform_device *pdev)
 {
-	int ret;
 	struct asic3 *asic = platform_get_drvdata(pdev);
 
 	asic3_set_register(asic, ASIC3_OFFSET(EXTCF, SELECT),
@@ -1038,9 +1036,8 @@ static int asic3_remove(struct platform_device *pdev)
 
 	asic3_mfd_remove(pdev);
 
-	ret = asic3_gpio_remove(pdev);
-	if (ret < 0)
-		return ret;
+	asic3_gpio_remove(pdev);
+
 	asic3_irq_remove(pdev);
 
 	asic3_write_register(asic, ASIC3_OFFSET(CLOCK, SEL), 0);
-- 
2.36.1