Re: [PATCH 48/53] drm/tiny: Convert to platform remove callback returning void

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Hi,

the subject line is a bit ugly. You may want to change the it to say either 'drm/tiny/arcgpu' or just 'drm/arcgpu'. Same for the other tiny/-related patches.

Best regards
Thomas

Am 07.05.23 um 18:26 schrieb Uwe Kleine-König:
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@xxxxxxxxxxxxxx>
---
  drivers/gpu/drm/tiny/arcpgu.c | 6 ++----
  1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/tiny/arcpgu.c b/drivers/gpu/drm/tiny/arcpgu.c
index 611bbee15071..a1f998a85ce8 100644
--- a/drivers/gpu/drm/tiny/arcpgu.c
+++ b/drivers/gpu/drm/tiny/arcpgu.c
@@ -404,14 +404,12 @@ static int arcpgu_probe(struct platform_device *pdev)
  	return ret;
  }
-static int arcpgu_remove(struct platform_device *pdev)
+static void arcpgu_remove(struct platform_device *pdev)
  {
  	struct drm_device *drm = platform_get_drvdata(pdev);
drm_dev_unregister(drm);
  	arcpgu_unload(drm);
-
-	return 0;
  }
static const struct of_device_id arcpgu_of_table[] = {
@@ -423,7 +421,7 @@ MODULE_DEVICE_TABLE(of, arcpgu_of_table);
static struct platform_driver arcpgu_platform_driver = {
  	.probe = arcpgu_probe,
-	.remove = arcpgu_remove,
+	.remove_new = arcpgu_remove,
  	.driver = {
  		   .name = "arcpgu",
  		   .of_match_table = arcpgu_of_table,

--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)

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