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3fd8a424a63c95269b0'>ipack: Check dev_set_name() return valueBo Liu It's possible that dev_set_name() returns -ENOMEM, catch and handle this. Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Bo Liu <liubo03@inspur.com> Link: https://lore.kernel.org/r/20220805091057.19951-1-liubo03@inspur.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2022-08-30tty: Make ->set_termios() old ktermios constIlpo Järvinen There should be no reason to adjust old ktermios which is going to get discarded anyway. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20220816115739.10928-9-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-10-04ipack: ipoctal: rename tty-driver pointerJohan Hovold The name "tty" is typically used for pointers to struct tty_struct. Rename the tty-driver pointer used during registration to something more apt to improve readability. Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20210917114622.5412-7-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-09-27ipack: ipoctal: fix module reference leakJohan Hovold A reference to the carrier module was taken on every open but was only released once when the final reference to the tty struct was dropped. Fix this by taking the module reference and initialising the tty driver data when installing the tty. Fixes: 82a82340bab6 ("ipoctal: get carrier driver to avoid rmmod") Cc: stable@vger.kernel.org # 3.18 Cc: Federico Vaga <federico.vaga@cern.ch> Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20210917114622.5412-6-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-09-27ipack: ipoctal: fix missing allocation-failure checkJohan Hovold Add the missing error handling when allocating the transmit buffer to avoid dereferencing a NULL pointer in write() should the allocation ever fail. Fixes: ba4dc61fe8c5 ("Staging: ipack: add support for IP-OCTAL mezzanine board") Cc: stable@vger.kernel.org # 3.5 Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20210917114622.5412-5-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-09-27ipack: ipoctal: fix tty-registration error handlingJohan Hovold Registration of the ipoctal tty devices is unlikely to fail, but if it ever does, make sure not to deregister a never registered tty device (and dereference a NULL pointer) when the driver is later unbound. Fixes: 2afb41d9d30d ("Staging: ipack/devices/ipoctal: Check tty_register_device return value.") Cc: stable@vger.kernel.org # 3.7 Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20210917114622.5412-4-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-09-27ipack: ipoctal: fix tty registration raceJohan Hovold Make sure to set the tty class-device driver data before registering the tty to avoid having a racing open() dereference a NULL pointer. Fixes: 9c1d784afc6f ("Staging: ipack/devices/ipoctal: Get rid of ipoctal_list.") Cc: stable@vger.kernel.org # 3.7 Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20210917114622.5412-3-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-09-27ipack: ipoctal: fix stack information leakJohan Hovold The tty driver name is used also after registering the driver and must specifically not be allocated on the stack to avoid leaking information to user space (or triggering an oops). Drivers should not try to encode topology information in the tty device name but this one snuck in through staging without anyone noticing and another driver has since copied this malpractice. Fixing the ABI is a separate issue, but this at least plugs the security hole. Fixes: ba4dc61fe8c5 ("Staging: ipack: add support for IP-OCTAL mezzanine board") Cc: stable@vger.kernel.org # 3.5 Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20210917114622.5412-2-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-09-01Merge tag 'tty-5.15-rc1' of ↵Linus Torvalds git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty / serial updates from Greg KH: "Here is the "big" set of tty/serial driver patches for 5.15-rc1 Nothing major in here at all, just some driver updates and more cleanups on old tty apis and code that needed it that includes: - tty.h cleanup of things that didn't belong in it - other tty cleanups by Jiri - driver cleanups - rs485 support added to amba-pl011 driver - dts updates - stm32 serial driver updates - other minor fixes and driver updates All have been in linux-next for a while with no reported problems" * tag 'tty-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (83 commits) tty: serial: uartlite: Use read_poll_timeout for a polling loop tty: serial: uartlite: Use constants in early_uartlite_putc tty: Fix data race between tiocsti() and flush_to_ldisc() serial: vt8500: Use of_device_get_match_data serial: tegra: Use of_device_get_match_data serial: 8250_ingenic: Use of_device_get_match_data tty: serial: linflexuart: Remove redundant check to simplify the code tty: serial: fsl_lpuart: do software reset for imx7ulp and imx8qxp tty: serial: fsl_lpuart: enable two stop bits for lpuart32 tty: serial: fsl_lpuart: fix the wrong mapbase value mxser: use semi-colons instead of commas tty: moxa: use semi-colons instead of commas tty: serial: fsl_lpuart: check dma_tx_in_progress in tx dma callback tty: replace in_irq() with in_hardirq() serial: sh-sci: fix break handling for sysrq serial: stm32: use devm_platform_get_and_ioremap_resource() serial: stm32: use the defined variable to simplify code Revert "arm pl011 serial: support multi-irq request" tty: serial: samsung: Add Exynos850 SoC data tty: serial: samsung: Fix driver data macros style ... 2021-09-01Merge tag 'driver-core-5.15-rc1' of ↵Linus Torvalds git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the big set of driver core patches for 5.15-rc1. These do change a number of different things across different subsystems, and because of that, there were 2 stable tags created that might have already come into your tree from different pulls that did the following - changed the bus remove callback to return void - sysfs iomem_get_mapping rework Other than those two things, there's only a few small things in here: - kernfs performance improvements for huge numbers of sysfs users at once - tiny api cleanups - other minor changes All of these have been in linux-next for a while with no reported problems, other than the before-mentioned merge issue" * tag 'driver-core-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (33 commits) MAINTAINERS: Add dri-devel for component.[hc] driver core: platform: Remove platform_device_add_properties() ARM: tegra: paz00: Handle device properties with software node API bitmap: extend comment to bitmap_print_bitmask/list_to_buf drivers/base/node.c: use bin_attribute to break the size limitation of cpumap ABI topology: use bin_attribute to break the size limitation of cpumap ABI lib: test_bitmap: add bitmap_print_bitmask/list_to_buf test cases cpumask: introduce cpumap_print_list/bitmask_to_buf to support large bitmask and list sysfs: Rename struct bin_attribute member to f_mapping sysfs: Invoke iomem_get_mapping() from the sysfs open callback debugfs: Return error during {full/open}_proxy_open() on rmmod zorro: Drop useless (and hardly used) .driver member in struct zorro_dev zorro: Simplify remove callback sh: superhyway: Simplify check in remove callback nubus: Simplify check in remove callback nubus: Make struct nubus_driver::remove return void kernfs: dont call d_splice_alias() under kernfs node lock kernfs: use i_lock to protect concurrent inode updates kernfs: switch kernfs to use an rwsem kernfs: use VFS negative dentry caching ... 2021-08-13ipack: tpci200: fix memory leak in the tpci200_registerDongliang Mu The error handling code in tpci200_register does not free interface_regs allocated by ioremap and the current version of error handling code is problematic. Fix this by refactoring the error handling code and free interface_regs when necessary. Fixes: 43986798fd50 ("ipack: add error handling for ioremap_nocache") Cc: stable@vger.kernel.org Reported-by: Dongliang Mu <mudongliangabcd@gmail.com> Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com> Link: https://lore.kernel.org/r/20210810100323.3938492-2-mudongliangabcd@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-08-13ipack: tpci200: fix many double free issues in tpci200_pci_probeDongliang Mu The function tpci200_register called by tpci200_install and tpci200_unregister called by tpci200_uninstall are in pair. However, tpci200_unregister has some cleanup operations not in the tpci200_register. So the error handling code of tpci200_pci_probe has many different double free issues. Fix this problem by moving those cleanup operations out of tpci200_unregister, into tpci200_pci_remove and reverting the previous commit 9272e5d0028d ("ipack/carriers/tpci200: Fix a double free in tpci200_pci_probe"). Fixes: 9272e5d0028d ("ipack/carriers/tpci200: Fix a double free in tpci200_pci_probe") Cc: stable@vger.kernel.org Reported-by: Dongliang Mu <mudongliangabcd@gmail.com> Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com> Link: https://lore.kernel.org/r/20210810100323.3938492-1-mudongliangabcd@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-07-27tty: drop put_tty_driverJiri Slaby put_tty_driver() is an alias for tty_driver_kref_put(). There is no need for two exported identical functions, therefore switch all users of old put_tty_driver() to new tty_driver_kref_put() and remove the former for good. Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com> Cc: Chris Zankel <chris@zankel.net> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Cc: Jens Taprogge <jens.taprogge@taprogge.org> Cc: Karsten Keil <isdn@linux-pingi.de> Cc: Scott Branden <scott.branden@broadcom.com> Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: David Lin <dtwlin@gmail.com> Cc: Johan Hovold <johan@kernel.org> Cc: Alex Elder <elder@kernel.org> Cc: Jiri Slaby <jirislaby@kernel.org> Cc: Laurentiu Tudor <laurentiu.tudor@nxp.com> Cc: Jiri Kosina <jikos@kernel.org> Cc: David Sterba <dsterba@suse.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Pengutronix Kernel Team <kernel@pengutronix.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: NXP Linux Team <linux-imx@nxp.com> Cc: Oliver Neukum <oneukum@suse.com> Cc: Felipe Balbi <balbi@kernel.org> Cc: Mathias Nyman <mathias.nyman@intel.com> Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Johan Hedberg <johan.hedberg@gmail.com> Cc: Luiz Augusto von Dentz <luiz.dentz@gmail.com> Acked-by: Alex Elder <elder@linaro.org> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Max Filippov <jcmvbkbc@gmail.com> Acked-by: David Sterba <dsterba@suse.com> Acked-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com> Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20210723074317.32690-8-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-07-27tty: stop using alloc_tty_driverJiri Slaby alloc_tty_driver was deprecated by tty_alloc_driver in commit 7f0bc6a68ed9 (TTY: pass flags to alloc_tty_driver) in 2012. I never got into eliminating alloc_tty_driver until now. So we still have two functions for allocating drivers which might be confusing. So get rid of alloc_tty_driver uses to eliminate it for good in the next patch. Note we need to switch return value checking as tty_alloc_driver uses ERR_PTR. And flags are now a parameter of tty_alloc_driver. Cc: Richard Henderson <rth@twiddle.net>(odd fixer:ALPHA PORT) Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Helge Deller <deller@gmx.de> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com> Cc: Chris Zankel <chris@zankel.net> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Cc: Jens Taprogge <jens.taprogge@taprogge.org> Cc: Karsten Keil <isdn@linux-pingi.de> Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Laurentiu Tudor <laurentiu.tudor@nxp.com> Cc: Jiri Kosina <jikos@kernel.org> Cc: David Sterba <dsterba@suse.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Oliver Neukum <oneukum@suse.com> Cc: Felipe Balbi <balbi@kernel.org> Cc: Johan Hovold <johan@kernel.org> Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Johan Hedberg <johan.hedberg@gmail.com> Cc: Luiz Augusto von Dentz <luiz.dentz@gmail.com> Acked-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com> Acked-by: Max Filippov <jcmvbkbc@gmail.com> Acked-by: David Sterba <dsterba@suse.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20210723074317.32690-5-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-07-21bus: Make remove callback return voidUwe Kleine-König 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. Reviewed-by: Tom Rix <trix@redhat.com> (For fpga) Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> Reviewed-by: Cornelia Huck <cohuck@redhat.com> (For drivers/s390 and drivers/vfio) Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> (For ARM, Amba and related parts) Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Chen-Yu Tsai <wens@csie.org> (for sunxi-rsb) Acked-by: Pali Rohár <pali@kernel.org> Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org> (for media) Acked-by: Hans de Goede <hdegoede@redhat.com> (For drivers/platform) Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-By: Vinod Koul <vkoul@kernel.org> Acked-by: Juergen Gross <jgross@suse.com> (For xen) Acked-by: Lee Jones <lee.jones@linaro.org> (For mfd) Acked-by: Johannes Thumshirn <jth@kernel.org> (For mcb) Acked-by: Johan Hovold <johan@kernel.org> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> (For slimbus) Acked-by: Kirti Wankhede <kwankhede@nvidia.com> (For vfio) Acked-by: Maximilian Luz <luzmaximilian@gmail.com> Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> (For ulpi and typec) Acked-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com> (For ipack) Acked-by: Geoff Levand <geoff@infradead.org> (For ps3) Acked-by: Yehezkel Bernat <YehezkelShB@gmail.com> (For thunderbolt) Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> (For intel_th) Acked-by: Dominik Brodowski <linux@dominikbrodowski.net> (For pcmcia) Acked-by: Rafael J. Wysocki <rafael@kernel.org> (For ACPI) Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> (rpmsg and apr) Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> (For intel-ish-hid) Acked-by: Dan Williams <dan.j.williams@intel.com> (For CXL, DAX, and NVDIMM) Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com> (For isa) Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (For firewire) Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> (For hid) Acked-by: Thorsten Scherer <t.scherer@eckelmann.de> (For siox) Acked-by: Sven Van Asbroeck <TheSven73@gmail.com> (For anybuss) Acked-by: Ulf Hansson <ulf.hansson@linaro.org> (For MMC) Acked-by: Wolfram Sang <wsa@kernel.org> # for I2C Acked-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Finn Thain <fthain@linux-m68k.org> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20210713193522.1770306-6-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-07-05Merge tag 'tty-5.14-rc1' of ↵Linus Torvalds git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty / serial updates from Greg KH: "Here is the big set of tty and serial driver patches for 5.14-rc1. A bit more than normal, but nothing major, lots of cleanups. Highlights are: - lots of tty api cleanups and mxser driver cleanups from Jiri - build warning fixes - various serial driver updates - coding style cleanups - various tty driver minor fixes and updates - removal of broken and disable r3964 line discipline (finally!) All of these have been in linux-next for a while with no reported issues" * tag 'tty-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (227 commits) serial: mvebu-uart: remove unused member nb from struct mvebu_uart arm64: dts: marvell: armada-37xx: Fix reg for standard variant of UART dt-bindings: mvebu-uart: fix documentation serial: mvebu-uart: correctly calculate minimal possible baudrate serial: mvebu-uart: do not allow changing baudrate when uartclk is not available serial: mvebu-uart: fix calculation of clock divisor tty: make linux/tty_flip.h self-contained serial: Prefer unsigned int to bare use of unsigned serial: 8250: 8250_omap: Fix possible interrupt storm on K3 SoCs serial: qcom_geni_serial: use DT aliases according to DT bindings Revert "tty: serial: Add UART driver for Cortina-Access platform" tty: serial: Add UART driver for Cortina-Access platform MAINTAINERS: add me back as mxser maintainer mxser: Documentation, fix typos mxser: Documentation, make the docs up-to-date mxser: Documentation, remove traces of callout device mxser: introduce mxser_16550A_or_MUST helper mxser: rename flags to old_speed in mxser_set_serial_info mxser: use port variable in mxser_set_serial_info mxser: access info->MCR under info->slock ... 2021-05-27ipac: tpci200: fix kernel-doc syntax and remove filename from file headerAditya Srivastava The opening comment mark '/**' is used for highlighting the beginning of kernel-doc comments. The header for drivers/ipack/carriers/tpci200 follows this syntax, but the content inside does not comply with kernel-doc. This line was probably not meant for kernel-doc parsing, but is parsed due to the presence of kernel-doc like comment syntax(i.e, '/**'), which causes unexpected warning from kernel-doc. For e.g., running scripts/kernel-doc -none on drivers/ipack/carriers/tpci200.c emits: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * tpci200.c Provide a simple fix by replacing this occurrence with general comment format, i.e. '/*', to prevent kernel-doc from parsing it. Also remove the redundant file name from the comment headers. Acked-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Aditya Srivastava <yashsri421@gmail.com> Link: https://lore.kernel.org/r/20210522124051.12540-1-yashsri421@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-05-27ipac: ipoctal: fix kernel-doc syntax and remove filename from file headersAditya Srivastava The opening comment mark '/**' is used for highlighting the beginning of kernel-doc comments. The header for drivers/ipack/devices/ipoctal follows this syntax, but the content inside does not comply with kernel-doc. This line was probably not meant for kernel-doc parsing, but is parsed due to the presence of kernel-doc like comment syntax(i.e, '/**'), which causes unexpected warning from kernel-doc. For e.g., running scripts/kernel-doc -none on drivers/ipack/devices/ipoctal.h emits: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * ipoctal.h Provide a simple fix by replacing this occurrence with general comment format, i.e. '/*', to prevent kernel-doc from parsing it. Also remove the redundant file name from the comment headers. Acked-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Aditya Srivastava <yashsri421@gmail.com> Link: https://lore.kernel.org/r/20210522121944.11182-1-yashsri421@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-05-27ipack/carriers/tpci200: Fix a double free in tpci200_pci_probeLv Yunlong In the out_err_bus_register error branch of tpci200_pci_probe, tpci200->info->cfg_regs is freed by tpci200_uninstall()-> tpci200_unregister()->pci_iounmap(..,tpci200->info->cfg_regs) in the first time. But later, iounmap() is called to free tpci200->info->cfg_regs again. My patch sets tpci200->info->cfg_regs to NULL after tpci200_uninstall() to avoid the double free. Fixes: cea2f7cdff2af ("Staging: ipack/bridges/tpci200: Use the TPCI200 in big endian mode") Cc: stable <stable@vger.kernel.org> Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn> Link: https://lore.kernel.org/r/20210524093205.8333-1-lyl2019@mail.ustc.edu.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-05-13tty: make tty_operations::chars_in_buffer return uintJiri Slaby tty_operations::chars_in_buffer is another hook which is expected to return values >= 0. So make it explicit by the return type too -- use unsigned int. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com> Acked-by: David Sterba <dsterba@suse.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Cc: Jens Taprogge <jens.taprogge@taprogge.org> Cc: Karsten Keil <isdn@linux-pingi.de> Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: David Lin <dtwlin@gmail.com> Cc: Johan Hovold <johan@kernel.org> Cc: Alex Elder <elder@kernel.org> Cc: Jiri Kosina <jikos@kernel.org> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Oliver Neukum <oneukum@suse.com> Cc: Felipe Balbi <balbi@kernel.org> Cc: Mathias Nyman <mathias.nyman@intel.com> Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Johan Hedberg <johan.hedberg@gmail.com> Cc: Luiz Augusto von Dentz <luiz.dentz@gmail.com> Link: https://lore.kernel.org/r/20210505091928.22010-27-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-05-13tty: make tty_operations::write_room return uintJiri Slaby Line disciplines expect a positive value or zero returned from tty->ops->write_room (invoked by tty_write_room). So make this assumption explicit by using unsigned int as a return value. Both of tty->ops->write_room and tty_write_room. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Acked-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Acked-by: Alex Elder <elder@linaro.org> Acked-by: Max Filippov <jcmvbkbc@gmail.com> # xtensa Acked-by: David Sterba <dsterba@suse.com> Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Helge Deller <deller@gmx.de> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Chris Zankel <chris@zankel.net> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Cc: Jens Taprogge <jens.taprogge@taprogge.org> Cc: Karsten Keil <isdn@linux-pingi.de> Cc: Scott Branden <scott.branden@broadcom.com> Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: David Lin <dtwlin@gmail.com> Cc: Johan Hovold <johan@kernel.org> Cc: Jiri Kosina <jikos@kernel.org> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Oliver Neukum <oneukum@suse.com> Cc: Felipe Balbi <balbi@kernel.org> Cc: Mathias Nyman <mathias.nyman@intel.com> Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Johan Hedberg <johan.hedberg@gmail.com> Cc: Luiz Augusto von Dentz <luiz.dentz@gmail.com> Link: https://lore.kernel.org/r/20210505091928.22010-23-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-02-09ipack: Handle a driver without remove callbackUwe Kleine-König A driver that only consumes devm-managed resources might well have no remove callback. Additionally given that the device core ignores the return value of ipack_bus_remove() stop returning an error code. Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org> Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Link: https://lore.kernel.org/r/20210207215556.96371-2-uwe@kleine-koenig.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-02-09ipack: Fail earlier for drivers without probe functionUwe Kleine-König A driver without a probe function isn't useful as it can never be used. Let registering such a driver fail already instead of failing every binding. This is only cosmetic as there is no ipack driver without a probe function. Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org> Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Link: https://lore.kernel.org/r/20210207215556.96371-1-uwe@kleine-koenig.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>