Johan Hovold fd00cf81a9 serdev: fix receive_buf return value when no callback ...

The receive_buf callback is supposed to return the number of bytes
processed and should specifically not return a negative errno.

Due to missing sanity checks in the serdev tty-port controller, a driver
not providing a receive_buf callback could cause the flush_to_ldisc()
worker to spin in a tight loop when the tty buffer pointers are
incremented with -EINVAL (-22).

The missing sanity checks have now been added to the tty-port
controller, but let's fix up the serdev-controller helper as well.

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2017-11-28 16:00:50 +01:00

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acpi

Merge tag 'tty-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2017-11-13 21:05:31 -08:00

asm-generic

include/asm-generic/topology.h: remove unused parent_node() macro

2017-11-17 16:10:05 -08:00

clocksource

Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

2017-11-15 10:56:56 -08:00

crypto

Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2017-11-14 10:52:09 -08:00

drm

Merge tag 'drm-for-v4.15-part2' of git://people.freedesktop.org/~airlied/linux

2017-11-23 21:04:56 -10:00

dt-bindings

Merge tag 'drm-for-v4.15-part2' of git://people.freedesktop.org/~airlied/linux

2017-11-23 21:04:56 -10:00

keys

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

kvm

KVM: arm/arm64: GICv4: Use the doorbell interrupt as an unblocking source

2017-11-10 09:43:22 +01:00

lib

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linux

serdev: fix receive_buf return value when no callback

2017-11-28 16:00:50 +01:00

math-emu

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media

Merge tag 'media/v4.15-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

2017-11-15 20:30:12 -08:00

memory

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misc

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net

net: accept UFO datagrams from tuntap and packet

2017-11-24 01:37:35 +09:00

pcmcia

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ras

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

rdma

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

2017-11-15 14:54:53 -08:00

scsi

scsi: Use 'blist_flags_t' for scsi_devinfo flags

2017-11-16 17:43:27 -05:00

soc

Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

2017-11-17 20:04:24 -08:00

sound

ALSA: hda - Fix yet remaining issue with vmaster 0dB initialization

2017-11-22 12:34:56 +01:00

target

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending

2017-11-24 19:19:20 -10:00

trace

Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-26 13:43:25 -08:00

uapi

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

2017-11-24 02:33:01 +09:00

video

Merge tag 'fbdev-v4.15' of git://github.com/bzolnier/linux

2017-11-20 21:50:24 -10:00

xen

Merge tag 'for-linus-4.15-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

2017-11-16 13:06:27 -08:00