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[18/51] video: fbdev: goldfishfb: Convert to platform remove callback returning void

Message ID 20230318235428.272091-19-u.kleine-koenig@pengutronix.de (mailing list archive)
State Accepted
Headers show
Series video: fbdev: Convert to platform remove callback returning void | expand

Commit Message

Uwe Kleine-König March 18, 2023, 11:53 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 <u.kleine-koenig@pengutronix.de>
---
 drivers/video/fbdev/goldfishfb.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
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Patch

diff --git a/drivers/video/fbdev/goldfishfb.c b/drivers/video/fbdev/goldfishfb.c
index 2b885cd046fe..6fa2108fd912 100644
--- a/drivers/video/fbdev/goldfishfb.c
+++ b/drivers/video/fbdev/goldfishfb.c
@@ -283,7 +283,7 @@  static int goldfish_fb_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int goldfish_fb_remove(struct platform_device *pdev)
+static void goldfish_fb_remove(struct platform_device *pdev)
 {
 	size_t framesize;
 	struct goldfish_fb *fb = platform_get_drvdata(pdev);
@@ -296,7 +296,6 @@  static int goldfish_fb_remove(struct platform_device *pdev)
 						fb->fb.fix.smem_start);
 	iounmap(fb->reg_base);
 	kfree(fb);
-	return 0;
 }
 
 static const struct of_device_id goldfish_fb_of_match[] = {
@@ -315,7 +314,7 @@  MODULE_DEVICE_TABLE(acpi, goldfish_fb_acpi_match);
 
 static struct platform_driver goldfish_fb_driver = {
 	.probe		= goldfish_fb_probe,
-	.remove		= goldfish_fb_remove,
+	.remove_new	= goldfish_fb_remove,
 	.driver = {
 		.name = "goldfish_fb",
 		.of_match_table = goldfish_fb_of_match,