[49/53] drm/tiny: Convert to platform remove callback returning void

Commit Message

Uwe Kleine-König May 7, 2023, 4:26 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 the tiny drm drivers from always returning zero in the
remove callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <[e-mail]>
---
 drivers/gpu/drm/tiny/ofdrm.c     | 6 ++----
 drivers/gpu/drm/tiny/simpledrm.c | 6 ++----
 2 files changed, 4 insertions(+), 8 deletions(-)

Patch

diff --git a/drivers/gpu/drm/tiny/ofdrm.c b/drivers/gpu/drm/tiny/ofdrm.c
index 6e349ca42485..e110f2e2c2a5 100644
--- a/drivers/gpu/drm/tiny/ofdrm.c
+++ b/drivers/gpu/drm/tiny/ofdrm.c
@@ -1373,13 +1373,11 @@  static int ofdrm_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int ofdrm_remove(struct platform_device *pdev)
+static void ofdrm_remove(struct platform_device *pdev)
 {
 	struct drm_device *dev = platform_get_drvdata(pdev);
 
 	drm_dev_unplug(dev);
-
-	return 0;
 }
 
 static const struct of_device_id ofdrm_of_match_display[] = {
@@ -1394,7 +1392,7 @@  static struct platform_driver ofdrm_platform_driver = {
 		.of_match_table = ofdrm_of_match_display,
 	},
 	.probe = ofdrm_probe,
-	.remove = ofdrm_remove,
+	.remove_new = ofdrm_remove,
 };
 
 module_platform_driver(ofdrm_platform_driver);
diff --git a/drivers/gpu/drm/tiny/simpledrm.c b/drivers/gpu/drm/tiny/simpledrm.c
index 63881a3754f8..369c236a2fad 100644
--- a/drivers/gpu/drm/tiny/simpledrm.c
+++ b/drivers/gpu/drm/tiny/simpledrm.c
@@ -875,14 +875,12 @@  static int simpledrm_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int simpledrm_remove(struct platform_device *pdev)
+static void simpledrm_remove(struct platform_device *pdev)
 {
 	struct simpledrm_device *sdev = platform_get_drvdata(pdev);
 	struct drm_device *dev = &sdev->dev;
 
 	drm_dev_unplug(dev);
-
-	return 0;
 }
 
 static const struct of_device_id simpledrm_of_match_table[] = {
@@ -897,7 +895,7 @@  static struct platform_driver simpledrm_platform_driver = {
 		.of_match_table = simpledrm_of_match_table,
 	},
 	.probe = simpledrm_probe,
-	.remove = simpledrm_remove,
+	.remove_new = simpledrm_remove,
 };
 
 module_platform_driver(simpledrm_platform_driver);