From: Nishanth Menon <nm@ti.com> To: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de> Cc: Philipp Zabel <p.zabel@pengutronix.de>, Tero Kristo <kristo@kernel.org>, Santosh Shilimkar <ssantosh@kernel.org>, <linux-arm-kernel@lists.infradead.org>, <linux-kernel@vger.kernel.org>, <kernel@pengutronix.de> Subject: Re: [PATCH 3/3] reset: ti-sci: Convert to platform remove callback returning void Date: Wed, 6 Mar 2024 14:49:17 -0600 [thread overview] Message-ID: <20240306204917.l4vlp6hjotkwa5ig@stingy> (raw) In-Reply-To: <ab374da386cafd6748aac5bdf66e6be3e1860509.1709674157.git.u.kleine-koenig@pengutronix.de> On 22:32-20240305, 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 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() will be 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@pengutronix.de> > --- Thanks. Reviewed-by: Nishanth Menon <nm@ti.com> > drivers/reset/reset-ti-sci.c | 6 ++---- > 1 file changed, 2 insertions(+), 4 deletions(-) > > diff --git a/drivers/reset/reset-ti-sci.c b/drivers/reset/reset-ti-sci.c > index cc01fa5b0bea..d384da0982fa 100644 > --- a/drivers/reset/reset-ti-sci.c > +++ b/drivers/reset/reset-ti-sci.c > @@ -235,20 +235,18 @@ static int ti_sci_reset_probe(struct platform_device *pdev) > return reset_controller_register(&data->rcdev); > } > > -static int ti_sci_reset_remove(struct platform_device *pdev) > +static void ti_sci_reset_remove(struct platform_device *pdev) > { > struct ti_sci_reset_data *data = platform_get_drvdata(pdev); > > reset_controller_unregister(&data->rcdev); > > idr_destroy(&data->idr); > - > - return 0; > } > > static struct platform_driver ti_sci_reset_driver = { > .probe = ti_sci_reset_probe, > - .remove = ti_sci_reset_remove, > + .remove_new = ti_sci_reset_remove, > .driver = { > .name = "ti-sci-reset", > .of_match_table = ti_sci_reset_of_match, > -- > 2.43.0 > -- Regards, Nishanth Menon Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D
WARNING: multiple messages have this Message-ID (diff)
From: Nishanth Menon <nm@ti.com> To: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de> Cc: Philipp Zabel <p.zabel@pengutronix.de>, Tero Kristo <kristo@kernel.org>, Santosh Shilimkar <ssantosh@kernel.org>, <linux-arm-kernel@lists.infradead.org>, <linux-kernel@vger.kernel.org>, <kernel@pengutronix.de> Subject: Re: [PATCH 3/3] reset: ti-sci: Convert to platform remove callback returning void Date: Wed, 6 Mar 2024 14:49:17 -0600 [thread overview] Message-ID: <20240306204917.l4vlp6hjotkwa5ig@stingy> (raw) In-Reply-To: <ab374da386cafd6748aac5bdf66e6be3e1860509.1709674157.git.u.kleine-koenig@pengutronix.de> On 22:32-20240305, 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 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() will be 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@pengutronix.de> > --- Thanks. Reviewed-by: Nishanth Menon <nm@ti.com> > drivers/reset/reset-ti-sci.c | 6 ++---- > 1 file changed, 2 insertions(+), 4 deletions(-) > > diff --git a/drivers/reset/reset-ti-sci.c b/drivers/reset/reset-ti-sci.c > index cc01fa5b0bea..d384da0982fa 100644 > --- a/drivers/reset/reset-ti-sci.c > +++ b/drivers/reset/reset-ti-sci.c > @@ -235,20 +235,18 @@ static int ti_sci_reset_probe(struct platform_device *pdev) > return reset_controller_register(&data->rcdev); > } > > -static int ti_sci_reset_remove(struct platform_device *pdev) > +static void ti_sci_reset_remove(struct platform_device *pdev) > { > struct ti_sci_reset_data *data = platform_get_drvdata(pdev); > > reset_controller_unregister(&data->rcdev); > > idr_destroy(&data->idr); > - > - return 0; > } > > static struct platform_driver ti_sci_reset_driver = { > .probe = ti_sci_reset_probe, > - .remove = ti_sci_reset_remove, > + .remove_new = ti_sci_reset_remove, > .driver = { > .name = "ti-sci-reset", > .of_match_table = ti_sci_reset_of_match, > -- > 2.43.0 > -- Regards, Nishanth Menon Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2024-03-06 20:49 UTC|newest] Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-03-05 21:32 [PATCH 0/3] reset: Convert to platform remove callback returning void Uwe Kleine-König 2024-03-05 21:32 ` Uwe Kleine-König 2024-03-05 21:32 ` Uwe Kleine-König 2024-03-05 21:32 ` [PATCH 1/3] reset: meson-audio-arb: " Uwe Kleine-König 2024-03-05 21:32 ` Uwe Kleine-König 2024-03-05 21:32 ` Uwe Kleine-König 2024-03-05 21:32 ` [PATCH 2/3] reset: rzg2l-usbphy-ctrl: " Uwe Kleine-König 2024-03-05 21:32 ` [PATCH 3/3] reset: ti-sci: " Uwe Kleine-König 2024-03-05 21:32 ` Uwe Kleine-König 2024-03-06 20:49 ` Nishanth Menon [this message] 2024-03-06 20:49 ` Nishanth Menon 2024-03-12 8:47 ` [PATCH 0/3] reset: " Philipp Zabel 2024-03-12 8:47 ` Philipp Zabel 2024-03-12 8:47 ` Philipp Zabel 2024-05-25 10:14 ` Uwe Kleine-König 2024-05-25 10:14 ` Uwe Kleine-König 2024-05-25 10:14 ` Uwe Kleine-König
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