[PATCH 81/89] i2c: xiic: Convert to platform remove callback returning void

Uwe Kleine-König u.kleine-koenig at pengutronix.de
Mon May 8 13:52:58 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-xiic.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c
index 8a3d9817cb41..61288f8dd067 100644
--- a/drivers/i2c/busses/i2c-xiic.c
+++ b/drivers/i2c/busses/i2c-xiic.c
@@ -1335,7 +1335,7 @@ static int xiic_i2c_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int xiic_i2c_remove(struct platform_device *pdev)
+static void xiic_i2c_remove(struct platform_device *pdev)
 {
 	struct xiic_i2c *i2c = platform_get_drvdata(pdev);
 	int ret;
@@ -1356,8 +1356,6 @@ static int xiic_i2c_remove(struct platform_device *pdev)
 	pm_runtime_disable(&pdev->dev);
 	pm_runtime_set_suspended(&pdev->dev);
 	pm_runtime_dont_use_autosuspend(&pdev->dev);
-
-	return 0;
 }
 
 static int __maybe_unused xiic_i2c_runtime_suspend(struct device *dev)
@@ -1390,7 +1388,7 @@ static const struct dev_pm_ops xiic_dev_pm_ops = {
 
 static struct platform_driver xiic_i2c_driver = {
 	.probe   = xiic_i2c_probe,
-	.remove  = xiic_i2c_remove,
+	.remove_new = xiic_i2c_remove,
 	.driver  = {
 		.name = DRIVER_NAME,
 		.of_match_table = of_match_ptr(xiic_of_match),
-- 
2.39.2




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