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[22/22] fb: omapfb/tpd12s015: Convert to platform remove callback returning void

Message ID 20231107091740.3924258-23-u.kleine-koenig@pengutronix.de
State New
Headers show
Series fb: handle remove callbacks in .exit.text and convert to .remove_new | expand

Commit Message

Uwe Kleine-König Nov. 7, 2023, 9:18 a.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>
---
 .../video/fbdev/omap2/omapfb/displays/encoder-tpd12s015.c   | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/encoder-tpd12s015.c b/drivers/video/fbdev/omap2/omapfb/displays/encoder-tpd12s015.c
index 0bdedc0f6527..eb3926d0361b 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/encoder-tpd12s015.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/encoder-tpd12s015.c
@@ -283,7 +283,7 @@  static int tpd_probe(struct platform_device *pdev)
 	return r;
 }
 
-static int tpd_remove(struct platform_device *pdev)
+static void tpd_remove(struct platform_device *pdev)
 {
 	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
 	struct omap_dss_device *dssdev = &ddata->dssdev;
@@ -300,8 +300,6 @@  static int tpd_remove(struct platform_device *pdev)
 		tpd_disconnect(dssdev, dssdev->dst);
 
 	omap_dss_put_device(in);
-
-	return 0;
 }
 
 static const struct of_device_id tpd_of_match[] = {
@@ -313,7 +311,7 @@  MODULE_DEVICE_TABLE(of, tpd_of_match);
 
 static struct platform_driver tpd_driver = {
 	.probe	= tpd_probe,
-	.remove	= tpd_remove,
+	.remove_new = tpd_remove,
 	.driver	= {
 		.name	= "tpd12s015",
 		.of_match_table = tpd_of_match,