Johan Hovold 49f71d50cb staging: greybus: uart: fix unprivileged TIOCCSERIAL ...

[ Upstream commit 60c6b305c1 ]

TIOCSSERIAL is a horrid, underspecified, legacy interface which for most
serial devices is only useful for setting the close_delay and
closing_wait parameters.

A non-privileged user has only ever been able to set the since long
deprecated ASYNC_SPD flags and trying to change any other *supported*
feature should result in -EPERM being returned. Setting the current
values for any supported features should return success.

Fix the greybus implementation which instead indicated that the
TIOCSSERIAL ioctl was not even implemented when a non-privileged user
set the current values.

Fixes: e68453ed28 ("greybus: uart-gb: now builds, more framework added")
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210407102334.32361-7-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2021-05-14 09:50:15 +02:00

..

Documentation

staging: greybus: remove license "boilerplate"

2019-08-27 19:02:26 +02:00

tools

Merge tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx

2020-04-03 13:12:26 -07:00

arche_platform.h

…

arche-apb-ctrl.c

staging: greybus: arche-apb-ctrl.c: Switch to the gpio descriptor interface

2019-01-15 16:18:14 +01:00

arche-platform.c

staging: greybus: move core include files to include/linux/greybus/

2019-08-27 19:02:59 +02:00

audio_apbridgea.c

staging: greybus: move core include files to include/linux/greybus/

2019-08-27 19:02:59 +02:00

audio_apbridgea.h

staging: Replace zero-length array with flexible-array member

2020-02-23 19:18:54 +01:00

audio_codec.c

staging: greybus: codecs: Fix reference counter leak in error handling

2020-12-30 11:53:09 +01:00

audio_codec.h

staging: greybus: audio: Resolve compilation errors for GB codec module

2020-07-29 16:40:09 +02:00

audio_gb.c

staging: greybus: move core include files to include/linux/greybus/

2019-08-27 19:02:59 +02:00

audio_helper.c

staging: greybus: audio: Fix possible leak free widgets in gbaudio_dapm_free_controls

2020-12-30 11:53:39 +01:00

audio_helper.h

staging: greybus: audio: Add helper APIs for dynamic audio modules

2020-07-29 16:40:09 +02:00

audio_manager_module.c

…

audio_manager_private.h

…

audio_manager_sysfs.c

…

audio_manager.c

staging: greybus: use after free in gb_audio_manager_remove_all()

2020-02-10 08:52:33 -08:00

audio_manager.h

…

audio_module.c

staging: greybus: fix warnings about endianness detected by sparse

2020-10-05 14:23:55 +02:00

audio_topology.c

staging: greybus: use __force when assigning __u8 value to snd_ctl_elem_type_t

2020-10-05 14:23:55 +02:00

authentication.c

staging: greybus: move core include files to include/linux/greybus/

2019-08-27 19:02:59 +02:00

bootrom.c

staging: greybus: move core include files to include/linux/greybus/

2019-08-27 19:02:59 +02:00

camera.c

staging: greybus: move core include files to include/linux/greybus/

2019-08-27 19:02:59 +02:00

firmware.h

staging: greybus: move core include files to include/linux/greybus/

2019-08-27 19:02:59 +02:00

fw-core.c

staging: greybus: move core include files to include/linux/greybus/

2019-08-27 19:02:59 +02:00

fw-download.c

staging: greybus: move core include files to include/linux/greybus/

2019-08-27 19:02:59 +02:00

fw-management.c

staging: greybus: move core include files to include/linux/greybus/

2019-08-27 19:02:59 +02:00

gb-camera.h

staging: greybus: fix up SPDX comment in .h files

2019-08-27 19:02:18 +02:00

gbphy.c

staging: greybus: move core include files to include/linux/greybus/

2019-08-27 19:02:59 +02:00

gbphy.h

staging: greybus: Add identifier name to function definition argument

2020-08-18 16:07:17 +02:00

gpio.c

staging: greybus: gpio: Use irqchip template

2020-07-28 10:05:33 +02:00

greybus_authentication.h

staging: greybus: remove license "boilerplate"

2019-08-27 19:02:26 +02:00

greybus_firmware.h

staging: greybus: remove license "boilerplate"

2019-08-27 19:02:26 +02:00

hid.c

staging: greybus: hid: remove braces {} around single statement block

2020-04-13 08:55:26 +02:00

i2c.c

staging: greybus: i2c: remove unused pointers

2020-03-17 12:47:24 +01:00

Kconfig

staging: greybus: audio: Enable GB codec, audio module compilation.

2020-07-29 16:40:26 +02:00

light.c

staging: greybus: fix a missing-check bug in gb_lights_light_config()

2020-04-13 08:55:26 +02:00

log.c

staging: greybus: move core include files to include/linux/greybus/

2019-08-27 19:02:59 +02:00

loopback.c

staging: greybus: loopback: fix a spelling error.

2020-05-27 10:18:09 +02:00

Makefile

staging: greybus: audio: Enable GB codec, audio module compilation.

2020-07-29 16:40:26 +02:00

power_supply.c

staging: greybus: move core include files to include/linux/greybus/

2019-08-27 19:02:59 +02:00

pwm.c

staging: greybus: move core include files to include/linux/greybus/

2019-08-27 19:02:59 +02:00

raw.c

staging: greybus: Replace zero-length array with flexible-array member

2020-02-11 14:04:53 -08:00

sdio.c

mmc: host: Drop redundant MMC_CAP_ERASE

2020-05-28 11:22:14 +02:00

spi.c

staging: greybus: move core include files to include/linux/greybus/

2019-08-27 19:02:59 +02:00

spilib.c

staging: greybus: move core include files to include/linux/greybus/

2019-08-27 19:02:59 +02:00

spilib.h

staging: greybus: fix up SPDX comment in .h files

2019-08-27 19:02:18 +02:00

TODO

…

uart.c

staging: greybus: uart: fix unprivileged TIOCCSERIAL

2021-05-14 09:50:15 +02:00

usb.c

staging: greybus: move core include files to include/linux/greybus/

2019-08-27 19:02:59 +02:00

vibrator.c

staging: greybus: move core include files to include/linux/greybus/

2019-08-27 19:02:59 +02:00