diff mbox series

[035/117] media: vde: Convert to platform remove callback returning void

Message ID 20230326143224.572654-38-u.kleine-koenig@pengutronix.de
State Accepted
Commit 9045184b76ea4cf2b114ea4700aae8079bdce037
Headers show
Series media: Convert to platform remove callback returning void | expand

Commit Message

Uwe Kleine-König March 26, 2023, 2:31 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/media/platform/nvidia/tegra-vde/vde.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

Comments

Thierry Reding April 4, 2023, 10:39 a.m. UTC | #1
On Sun, Mar 26, 2023 at 04:31:02PM +0200, Uwe Kleine-König wrote:
> 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/media/platform/nvidia/tegra-vde/vde.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)

Acked-by: Thierry Reding <treding@nvidia.com>
diff mbox series

Patch

diff --git a/drivers/media/platform/nvidia/tegra-vde/vde.c b/drivers/media/platform/nvidia/tegra-vde/vde.c
index f3e863a94c5a..7157734a1550 100644
--- a/drivers/media/platform/nvidia/tegra-vde/vde.c
+++ b/drivers/media/platform/nvidia/tegra-vde/vde.c
@@ -378,7 +378,7 @@  static int tegra_vde_probe(struct platform_device *pdev)
 	return err;
 }
 
-static int tegra_vde_remove(struct platform_device *pdev)
+static void tegra_vde_remove(struct platform_device *pdev)
 {
 	struct tegra_vde *vde = platform_get_drvdata(pdev);
 	struct device *dev = &pdev->dev;
@@ -407,8 +407,6 @@  static int tegra_vde_remove(struct platform_device *pdev)
 
 	gen_pool_free(vde->iram_pool, (unsigned long)vde->iram,
 		      gen_pool_size(vde->iram_pool));
-
-	return 0;
 }
 
 static void tegra_vde_shutdown(struct platform_device *pdev)
@@ -536,7 +534,7 @@  MODULE_DEVICE_TABLE(of, tegra_vde_of_match);
 
 static struct platform_driver tegra_vde_driver = {
 	.probe		= tegra_vde_probe,
-	.remove		= tegra_vde_remove,
+	.remove_new	= tegra_vde_remove,
 	.shutdown	= tegra_vde_shutdown,
 	.driver		= {
 		.name		= "tegra-vde",