[26/51] video: fbdev: metronomefb: Convert to platform remove callback returning void

Commit Message

Uwe Kleine-König March 18, 2023, 11:54 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 (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 <[e-mail]>
---
 drivers/video/fbdev/metronomefb.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

Patch

diff --git a/drivers/video/fbdev/metronomefb.c b/drivers/video/fbdev/metronomefb.c
index 9fd4bb85d735..bbdbf463f0c8 100644
--- a/drivers/video/fbdev/metronomefb.c
+++ b/drivers/video/fbdev/metronomefb.c
@@ -744,7 +744,7 @@  static int metronomefb_probe(struct platform_device *dev)
 	return retval;
 }
 
-static int metronomefb_remove(struct platform_device *dev)
+static void metronomefb_remove(struct platform_device *dev)
 {
 	struct fb_info *info = platform_get_drvdata(dev);
 
@@ -761,12 +761,11 @@  static int metronomefb_remove(struct platform_device *dev)
 		dev_dbg(&dev->dev, "calling release\n");
 		framebuffer_release(info);
 	}
-	return 0;
 }
 
 static struct platform_driver metronomefb_driver = {
 	.probe	= metronomefb_probe,
-	.remove = metronomefb_remove,
+	.remove_new = metronomefb_remove,
 	.driver	= {
 		.name	= "metronomefb",
 	},