[PATCH 35/89] i2c: lpc2k: Convert to platform remove callback returning void

Uwe Kleine-König u.kleine-koenig at pengutronix.de
Mon May 8 13:52:12 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-lpc2k.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/busses/i2c-lpc2k.c b/drivers/i2c/busses/i2c-lpc2k.c
index 8fff6fbb7065..469fe907723e 100644
--- a/drivers/i2c/busses/i2c-lpc2k.c
+++ b/drivers/i2c/busses/i2c-lpc2k.c
@@ -435,14 +435,12 @@ static int i2c_lpc2k_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int i2c_lpc2k_remove(struct platform_device *dev)
+static void i2c_lpc2k_remove(struct platform_device *dev)
 {
 	struct lpc2k_i2c *i2c = platform_get_drvdata(dev);
 
 	i2c_del_adapter(&i2c->adap);
 	clk_disable_unprepare(i2c->clk);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM
@@ -483,7 +481,7 @@ MODULE_DEVICE_TABLE(of, lpc2k_i2c_match);
 
 static struct platform_driver i2c_lpc2k_driver = {
 	.probe	= i2c_lpc2k_probe,
-	.remove	= i2c_lpc2k_remove,
+	.remove_new = i2c_lpc2k_remove,
 	.driver	= {
 		.name		= "lpc2k-i2c",
 		.pm		= I2C_LPC2K_DEV_PM_OPS,
-- 
2.39.2




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