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Date:   Tue, 20 Jul 2021 22:25:42 +0200
From:   Wolfram Sang <wsa@...nel.org>
To:     Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        kernel@...gutronix.de,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Alexandre Bounine <alex.bou9@...il.com>,
        Alex Dubov <oakad@...oo.com>, Alex Elder <elder@...nel.org>,
        Alex Williamson <alex.williamson@...hat.com>,
        Alison Schofield <alison.schofield@...el.com>,
        Allen Hubbe <allenbh@...il.com>,
        Andreas Noever <andreas.noever@...il.com>,
        Andy Gross <agross@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        Ben Widawsky <ben.widawsky@...el.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Bodo Stroesser <bostroesser@...il.com>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Chen-Yu Tsai <wens@...e.org>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Cornelia Huck <cohuck@...hat.com>,
        Cristian Marussi <cristian.marussi@....com>,
        Dan Williams <dan.j.williams@...el.com>,
        Dave Jiang <dave.jiang@...el.com>,
        "David S. Miller" <davem@...emloft.net>,
        David Woodhouse <dwmw@...zon.co.uk>,
        Dexuan Cui <decui@...rosoft.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Dominik Brodowski <linux@...inikbrodowski.net>,
        Finn Thain <fthain@...ux-m68k.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        Frank Li <lznuaa@...il.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Geoff Levand <geoff@...radead.org>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Hannes Reinecke <hare@...e.de>,
        Hans de Goede <hdegoede@...hat.com>,
        Harald Freudenberger <freude@...ux.ibm.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Helge Deller <deller@....de>, Ira Weiny <ira.weiny@...el.com>,
        Jakub Kicinski <kuba@...nel.org>,
        "James E.J. Bottomley" <James.Bottomley@...senpartnership.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Jason Wang <jasowang@...hat.com>,
        Jens Taprogge <jens.taprogge@...rogge.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Jiri Kosina <jikos@...nel.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        Joey Pabalan <jpabalanb@...il.com>,
        Johan Hovold <johan@...nel.org>,
        Johannes Berg <johannes@...solutions.net>,
        Johannes Thumshirn <morbidrsa@...il.com>,
        Jon Mason <jdmason@...zu.us>, Juergen Gross <jgross@...e.com>,
        Julien Grall <jgrall@...zon.com>,
        Kai-Heng Feng <kai.heng.feng@...onical.com>,
        Kirti Wankhede <kwankhede@...dia.com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Krzysztof Wilczyński <kw@...ux.com>,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        Lee Jones <lee.jones@...aro.org>, Len Brown <lenb@...nel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Manohar Vanga <manohar.vanga@...il.com>,
        Marc Zyngier <maz@...nel.org>, Mark Brown <broonie@...nel.org>,
        Mark Gross <mgross@...ux.intel.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Martyn Welch <martyn@...chs.me.uk>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Matt Porter <mporter@...nel.crashing.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Maxime Ripard <mripard@...nel.org>,
        Maximilian Luz <luzmaximilian@...il.com>,
        Maxim Levitsky <maximlevitsky@...il.com>,
        Michael Buesch <m@...s.ch>,
        Michael Ellerman <mpe@...erman.id.au>,
        Michael Jamet <michael.jamet@...el.com>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Mike Christie <michael.christie@...cle.com>,
        Moritz Fischer <mdf@...nel.org>,
        Ohad Ben-Cohen <ohad@...ery.com>,
        Pali Rohár <pali@...nel.org>,
        Paul Mackerras <paulus@...ba.org>,
        Peter Oberparleiter <oberpar@...ux.ibm.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Rafał Miłecki <zajec5@...il.com>,
        Rich Felker <dalias@...c.org>,
        Rikard Falkeborn <rikard.falkeborn@...il.com>,
        Rob Herring <robh@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
        Samuel Holland <samuel@...lland.org>,
        Samuel Iglesias Gonsalvez <siglesias@...lia.com>,
        SeongJae Park <sjpark@...zon.de>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        Stefano Stabellini <sstabellini@...nel.org>,
        Stefan Richter <stefanr@...6.in-berlin.de>,
        Stephen Boyd <sboyd@...nel.org>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Sudeep Holla <sudeep.holla@....com>,
        Sven Van Asbroeck <TheSven73@...il.com>,
        Takashi Iwai <tiwai@...e.com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Thorsten Scherer <t.scherer@...elmann.de>,
        Tomas Winkler <tomas.winkler@...el.com>,
        Tom Rix <trix@...hat.com>,
        Tyrel Datwyler <tyreld@...ux.ibm.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Vineeth Vijayan <vneethv@...ux.ibm.com>,
        Vinod Koul <vkoul@...nel.org>,
        Vishal Verma <vishal.l.verma@...el.com>,
        Wei Liu <wei.liu@...nel.org>,
        William Breathitt Gray <vilhelm.gray@...il.com>,
        Wu Hao <hao.wu@...el.com>,
        Yehezkel Bernat <YehezkelShB@...il.com>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        YueHaibing <yuehaibing@...wei.com>,
        Yufen Yu <yuyufen@...wei.com>, alsa-devel@...a-project.org,
        dmaengine@...r.kernel.org, greybus-dev@...ts.linaro.org,
        industrypack-devel@...ts.sourceforge.net, kvm@...r.kernel.org,
        linux1394-devel@...ts.sourceforge.net, linux-acpi@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org, linux-cxl@...r.kernel.org,
        linux-fpga@...r.kernel.org, linux-hyperv@...r.kernel.org,
        linux-i2c@...r.kernel.org, linux-i3c@...ts.infradead.org,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-m68k@...ts.linux-m68k.org, linux-media@...r.kernel.org,
        linux-mips@...r.kernel.org, linux-mmc@...r.kernel.org,
        linux-ntb@...glegroups.com, linux-parisc@...r.kernel.org,
        linux-pci@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-remoteproc@...r.kernel.org, linux-s390@...r.kernel.org,
        linux-scsi@...r.kernel.org, linux-serial@...r.kernel.org,
        linux-sh@...r.kernel.org, linux-spi@...r.kernel.org,
        linux-staging@...ts.linux.dev, linux-sunxi@...ts.linux.dev,
        linux-usb@...r.kernel.org, linux-wireless@...r.kernel.org,
        netdev@...r.kernel.org, nvdimm@...ts.linux.dev,
        platform-driver-x86@...r.kernel.org, sparclinux@...r.kernel.org,
        target-devel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org,
        xen-devel@...ts.xenproject.org,
        Johannes Thumshirn <jth@...nel.org>,
        "Rafael J . Wysocki" <rafael@...nel.org>
Subject: Re: [PATCH v4 5/5] bus: Make remove callback return void

On Tue, Jul 13, 2021 at 09:35:22PM +0200, Uwe Kleine-König wrote:
> The driver core ignores the return value of this callback because there
> is only little it can do when a device disappears.
> 
> This is the final bit of a long lasting cleanup quest where several
> buses were converted to also return void from their remove callback.
> Additionally some resource leaks were fixed that were caused by drivers
> returning an error code in the expectation that the driver won't go
> away.
> 
> With struct bus_type::remove returning void it's prevented that newly
> implemented buses return an ignored error code and so don't anticipate
> wrong expectations for driver authors.
> 
> Acked-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk> (For ARM, Amba and related parts)
> Acked-by: Mark Brown <broonie@...nel.org>
> Acked-by: Chen-Yu Tsai <wens@...e.org> (for sunxi-rsb)
> Acked-by: Pali Rohár <pali@...nel.org>
> Acked-by: Mauro Carvalho Chehab <mchehab@...nel.org> (for media)
> Acked-by: Hans de Goede <hdegoede@...hat.com> (For drivers/platform)
> Acked-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
> Acked-By: Vinod Koul <vkoul@...nel.org>
> Acked-by: Juergen Gross <jgross@...e.com> (For xen)
> Acked-by: Lee Jones <lee.jones@...aro.org> (For mfd)
> Acked-by: Johannes Thumshirn <jth@...nel.org> (For mcb)
> Acked-by: Johan Hovold <johan@...nel.org>
> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org> (For slimbus)
> Acked-by: Kirti Wankhede <kwankhede@...dia.com> (For vfio)
> Acked-by: Maximilian Luz <luzmaximilian@...il.com>
> Acked-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com> (For ulpi and typec)
> Acked-by: Samuel Iglesias Gonsálvez <siglesias@...lia.com> (For ipack)
> Reviewed-by: Tom Rix <trix@...hat.com> (For fpga)
> Acked-by: Geoff Levand <geoff@...radead.org> (For ps3)
> Acked-by: Yehezkel Bernat <YehezkelShB@...il.com> (For thunderbolt)
> Reviewed-by: Mathieu Poirier <mathieu.poirier@...aro.org>
> Acked-by: Alexander Shishkin <alexander.shishkin@...ux.intel.com> (For intel_th)
> Acked-by: Dominik Brodowski <linux@...inikbrodowski.net> (For pcmcia)
> Reviewed-by: Cornelia Huck <cohuck@...hat.com> (For drivers/s390 and drivers/vfio)
> Acked-by: Rafael J. Wysocki <rafael@...nel.org> (For ACPI)
> Acked-by: Bjorn Andersson <bjorn.andersson@...aro.org> (rpmsg and apr)
> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com> (For intel-ish-hid)
> Acked-by: Dan Williams <dan.j.williams@...el.com> (For CXL, DAX, and NVDIMM)
> Acked-by: William Breathitt Gray <vilhelm.gray@...il.com> (For isa)
> Acked-by: Stefan Richter <stefanr@...6.in-berlin.de> (For firewire)
> Acked-by: Benjamin Tissoires <benjamin.tissoires@...hat.com> (For hid)
> Acked-by: Thorsten Scherer <t.scherer@...elmann.de> (For siox)
> Acked-by: Sven Van Asbroeck <TheSven73@...il.com> (For anybuss)
> Acked-by: Ulf Hansson <ulf.hansson@...aro.org> (For MMC)
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>

Acked-by: Wolfram Sang <wsa@...nel.org> # for I2C

Thanks, Uwe!


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