Dne torek, 19. september 2023 ob 15:31:54 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 ignored (apart
> from emitting a warning) 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. Eventually after all drivers
> are converted, .remove_new() is renamed to .remove().
>
> 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>
Acked-by: Jernej Skrabec <jernej.skrabec@xxxxxxxxx>
Best regards,
Jernej
> ---
> drivers/dma/sun6i-dma.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/dma/sun6i-dma.c b/drivers/dma/sun6i-dma.c
> index 2469efddf540..583bf49031cf 100644
> --- a/drivers/dma/sun6i-dma.c
> +++ b/drivers/dma/sun6i-dma.c
> @@ -1470,7 +1470,7 @@ static int sun6i_dma_probe(struct platform_device
> *pdev) return ret;
> }
>
> -static int sun6i_dma_remove(struct platform_device *pdev)
> +static void sun6i_dma_remove(struct platform_device *pdev)
> {
> struct sun6i_dma_dev *sdc = platform_get_drvdata(pdev);
>
> @@ -1484,13 +1484,11 @@ static int sun6i_dma_remove(struct platform_device
> *pdev) reset_control_assert(sdc->rstc);
>
> sun6i_dma_free(sdc);
> -
> - return 0;
> }
>
> static struct platform_driver sun6i_dma_driver = {
> .probe = sun6i_dma_probe,
> - .remove = sun6i_dma_remove,
> + .remove_new = sun6i_dma_remove,
> .driver = {
> .name = "sun6i-dma",
> .of_match_table = sun6i_dma_match,
