[PATCH 22/89] i2c: exynos5: Convert to platform remove callback returning void

Uwe Kleine-König u.kleine-koenig at pengutronix.de
Mon May 8 13:51:59 PDT 2023


The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>
---
 drivers/i2c/busses/i2c-exynos5.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/busses/i2c-exynos5.c b/drivers/i2c/busses/i2c-exynos5.c
index 4a6260d04db2..f378cd479e55 100644
--- a/drivers/i2c/busses/i2c-exynos5.c
+++ b/drivers/i2c/busses/i2c-exynos5.c
@@ -882,7 +882,7 @@ static int exynos5_i2c_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int exynos5_i2c_remove(struct platform_device *pdev)
+static void exynos5_i2c_remove(struct platform_device *pdev)
 {
 	struct exynos5_i2c *i2c = platform_get_drvdata(pdev);
 
@@ -890,8 +890,6 @@ static int exynos5_i2c_remove(struct platform_device *pdev)
 
 	clk_unprepare(i2c->clk);
 	clk_unprepare(i2c->pclk);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -945,7 +943,7 @@ static const struct dev_pm_ops exynos5_i2c_dev_pm_ops = {
 
 static struct platform_driver exynos5_i2c_driver = {
 	.probe		= exynos5_i2c_probe,
-	.remove		= exynos5_i2c_remove,
+	.remove_new	= exynos5_i2c_remove,
 	.driver		= {
 		.name	= "exynos5-hsi2c",
 		.pm	= &exynos5_i2c_dev_pm_ops,
-- 
2.39.2




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