| Message ID | 20230326143224.572654-81-u.kleine-koenig@pengutronix.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | None | expand |
Dne nedelja, 26. marec 2023 ob 16:31:45 CEST je Uwe Kleine-König napisal(a): > 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> Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com> Best regards, Jernej
diff --git a/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c b/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c index 86c5235a0c7a..d6e7d1b36083 100644 --- a/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c +++ b/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c @@ -260,7 +260,7 @@ static int sun4i_csi_probe(struct platform_device *pdev) return ret; } -static int sun4i_csi_remove(struct platform_device *pdev) +static void sun4i_csi_remove(struct platform_device *pdev) { struct sun4i_csi *csi = platform_get_drvdata(pdev); @@ -271,8 +271,6 @@ static int sun4i_csi_remove(struct platform_device *pdev) media_device_unregister(&csi->mdev); sun4i_csi_dma_unregister(csi); media_device_cleanup(&csi->mdev); - - return 0; } static const struct sun4i_csi_traits sun4i_a10_csi1_traits = { @@ -330,7 +328,7 @@ static const struct dev_pm_ops sun4i_csi_pm_ops = { static struct platform_driver sun4i_csi_driver = { .probe = sun4i_csi_probe, - .remove = sun4i_csi_remove, + .remove_new = sun4i_csi_remove, .driver = { .name = "sun4i-csi", .of_match_table = sun4i_csi_of_match,
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/sunxi/sun4i-csi/sun4i_csi.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)