diff mbox series

[47/52] input: pcap_ts - Convert to platform remove callback returning void

Message ID 20230920125829.1478827-48-u.kleine-koenig@pengutronix.de (mailing list archive)
State Mainlined
Commit f6f14e4a33a492d0761ce9f07bd299d7c656bd1a
Headers show
Series input: Convert to platform remove callback returning void | expand

Commit Message

Uwe Kleine-König Sept. 20, 2023, 12:58 p.m. UTC
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 ignored (apart
from emitting a warning) 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. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

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@pengutronix.de>
---
 drivers/input/touchscreen/pcap_ts.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/input/touchscreen/pcap_ts.c b/drivers/input/touchscreen/pcap_ts.c
index b2da0194e02a..821245019fea 100644
--- a/drivers/input/touchscreen/pcap_ts.c
+++ b/drivers/input/touchscreen/pcap_ts.c
@@ -197,7 +197,7 @@  static int pcap_ts_probe(struct platform_device *pdev)
 	return err;
 }
 
-static int pcap_ts_remove(struct platform_device *pdev)
+static void pcap_ts_remove(struct platform_device *pdev)
 {
 	struct pcap_ts *pcap_ts = platform_get_drvdata(pdev);
 
@@ -207,8 +207,6 @@  static int pcap_ts_remove(struct platform_device *pdev)
 	input_unregister_device(pcap_ts->input);
 
 	kfree(pcap_ts);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM
@@ -240,7 +238,7 @@  static const struct dev_pm_ops pcap_ts_pm_ops = {
 
 static struct platform_driver pcap_ts_driver = {
 	.probe		= pcap_ts_probe,
-	.remove		= pcap_ts_remove,
+	.remove_new	= pcap_ts_remove,
 	.driver		= {
 		.name	= "pcap-ts",
 		.pm	= PCAP_TS_PM_OPS,