| Message ID | 20230403154014.2564054-1-u.kleine-koenig@pengutronix.de (mailing list archive) |
|---|---|
| Headers | show |
| Series | staging: Convert to platform remove callback returning void | expand |
On Mon, Apr 03, 2023 at 05:39:50PM +0200, Uwe Kleine-König wrote: > Hello, > > this series adapts the platform drivers below drivers/staging to use the > .remove_new() callback. Compared to the traditional .remove() callback > .remove_new() returns no value. This is a good thing because the driver > core doesn't (and cannot) cope for errors during remove. The only effect > of a non-zero return value in .remove() is that the driver core emits a > warning. The device is removed anyhow and an early return from .remove() > usually yields a resource leak. > > By changing the remove callback to return void driver authors cannot > reasonably assume any more that there is some kind of cleanup later. > > All drivers in staging already return zero in their remove callback, so > they can be trivially converted. > > The changes to the individual drivers are all orthogonal. If I need to > resend some patches because of some review feedback, I'd like to only > send the patches that actually needed changes, so please pick up the > remaining patches that don't need changing to reduce the amount of mail. Note, I can't take drivers/staging/media/ patches, those go through the v4l maintainer's tree. So I've taken the non-media patches from this series now. thanks, greg k-h
Hello, this series adapts the platform drivers below drivers/staging to use the .remove_new() callback. Compared to the traditional .remove() callback .remove_new() returns no value. This is a good thing because the driver core doesn't (and cannot) cope for errors during remove. The only effect of a non-zero return value in .remove() is that the driver core emits a warning. The device is removed anyhow and an early return from .remove() usually yields a resource leak. By changing the remove callback to return void driver authors cannot reasonably assume any more that there is some kind of cleanup later. All drivers in staging already return zero in their remove callback, so they can be trivially converted. The changes to the individual drivers are all orthogonal. If I need to resend some patches because of some review feedback, I'd like to only send the patches that actually needed changes, so please pick up the remaining patches that don't need changing to reduce the amount of mail. Best regards Uwe Uwe Kleine-König (24): staging: axis-fifo: Convert to platform remove callback returning void staging: emxx_udc: Convert to platform remove callback returning void staging: fieldbus: arcx-anybus: Convert to platform remove callback returning void staging: greybus: arche-apb-ctrl: Convert to platform remove callback returning void staging: greybus: arche: Convert to platform remove callback returning void staging: media: atmel-sama5d2-isc: Convert to platform remove callback returning void staging: media: atmel-sama7g5-isc: Convert to platform remove callback returning void staging: media: imx-media-csi: Convert to platform remove callback returning void staging: media: imx-media-dev: Convert to platform remove callback returning void staging: media: imx6-mipi-csi2: Convert to platform remove callback returning void staging: media: imx8mq-mipi-csi2: Convert to platform remove callback returning void staging: media: meson: vdec: Convert to platform remove callback returning void staging: media: omap4iss: Convert to platform remove callback returning void staging: media: rkvdec: Convert to platform remove callback returning void staging: media: sunxi: cedrus: Convert to platform remove callback returning void staging: media: sun6i-isp: Convert to platform remove callback returning void staging: most: dim2: Convert to platform remove callback returning void staging: nvec: Convert to platform remove callback returning void staging: nvec: nvec_kbd: Convert to platform remove callback returning void staging: nvec_power: Convert to platform remove callback returning void staging: nvec_ps2: Convert to platform remove callback returning void staging: octeon: ethernet: Convert to platform remove callback returning void staging: vc04_services: bcm2835-camera: Convert to platform remove callback returning void staging: vc04_services: vchiq_arm: Convert to platform remove callback returning void drivers/staging/axis-fifo/axis-fifo.c | 6 ++---- drivers/staging/emxx_udc/emxx_udc.c | 6 ++---- drivers/staging/fieldbus/anybuss/arcx-anybus.c | 5 ++--- drivers/staging/greybus/arche-apb-ctrl.c | 6 ++---- drivers/staging/greybus/arche-platform.c | 6 ++---- drivers/staging/media/deprecated/atmel/atmel-sama5d2-isc.c | 6 ++---- drivers/staging/media/deprecated/atmel/atmel-sama7g5-isc.c | 6 ++---- drivers/staging/media/imx/imx-media-csi.c | 6 ++---- drivers/staging/media/imx/imx-media-dev.c | 6 ++---- drivers/staging/media/imx/imx6-mipi-csi2.c | 6 ++---- drivers/staging/media/imx/imx8mq-mipi-csi2.c | 6 ++---- drivers/staging/media/meson/vdec/vdec.c | 6 ++---- drivers/staging/media/omap4iss/iss.c | 6 ++---- drivers/staging/media/rkvdec/rkvdec.c | 5 ++--- drivers/staging/media/sunxi/cedrus/cedrus.c | 6 ++---- drivers/staging/media/sunxi/sun6i-isp/sun6i_isp.c | 6 ++---- drivers/staging/most/dim2/dim2.c | 6 ++---- drivers/staging/nvec/nvec.c | 6 ++---- drivers/staging/nvec/nvec_kbd.c | 6 ++---- drivers/staging/nvec/nvec_power.c | 6 ++---- drivers/staging/nvec/nvec_ps2.c | 6 ++---- drivers/staging/octeon/ethernet.c | 5 ++--- .../staging/vc04_services/bcm2835-camera/bcm2835-camera.c | 6 ++---- .../staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 6 ++---- 24 files changed, 48 insertions(+), 93 deletions(-) base-commit: fe15c26ee26efa11741a7b632e9f23b01aca4cc6