| Message ID | 20230508205306.1474415-59-u.kleine-koenig@pengutronix.de (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Geert Uytterhoeven |
| Headers | show |
| Series | i2c: Convert to platform remove callback returning void | expand |
On Mon, May 8, 2023 at 10:54 PM Uwe Kleine-König <u.kleine-koenig@pengutronix.de> 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> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Gr{oetje,eeting}s, Geert
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c index cef82b205c26..2d9c37410ebd 100644 --- a/drivers/i2c/busses/i2c-rcar.c +++ b/drivers/i2c/busses/i2c-rcar.c @@ -1155,7 +1155,7 @@ static int rcar_i2c_probe(struct platform_device *pdev) return ret; } -static int rcar_i2c_remove(struct platform_device *pdev) +static void rcar_i2c_remove(struct platform_device *pdev) { struct rcar_i2c_priv *priv = platform_get_drvdata(pdev); struct device *dev = &pdev->dev; @@ -1167,8 +1167,6 @@ static int rcar_i2c_remove(struct platform_device *pdev) if (priv->flags & ID_P_PM_BLOCKED) pm_runtime_put(dev); pm_runtime_disable(dev); - - return 0; } #ifdef CONFIG_PM_SLEEP @@ -1204,7 +1202,7 @@ static struct platform_driver rcar_i2c_driver = { .pm = DEV_PM_OPS, }, .probe = rcar_i2c_probe, - .remove = rcar_i2c_remove, + .remove_new = rcar_i2c_remove, }; module_platform_driver(rcar_i2c_driver);
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/i2c/busses/i2c-rcar.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)