linux-stable/drivers
Johan Hovold 696c541c8c USB: serial: keyspan_pda: fix dropped unthrottle interrupts
Commit c528fcb116 ("USB: serial: keyspan_pda: fix receive sanity
checks") broke write-unthrottle handling by dropping well-formed
unthrottle-interrupt packets which are precisely two bytes long. This
could lead to blocked writers not being woken up when buffer space again
becomes available.

Instead, stop unconditionally printing the third byte which is
(presumably) only valid on modem-line changes.

Fixes: c528fcb116 ("USB: serial: keyspan_pda: fix receive sanity checks")
Cc: stable <stable@vger.kernel.org>     # 4.11
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-11-04 11:00:17 +01:00
..
accessibility
acpi
amba
android
ata Merge branch 'parisc-5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux 2020-10-25 10:59:34 -07:00
atm
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block xen: branch for v5.10-rc1c 2020-10-25 10:55:35 -07:00
bluetooth
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char random32: make prandom_u32() output unpredictable 2020-10-24 20:21:57 +02:00
clk treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
clocksource treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
connector
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crypto
dax
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edac
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firewire
firmware
fpga
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i2c i2c: core: Restore acpi_walk_dep_device_list() getting called after registering the ACPI i2c devs 2020-10-25 13:33:54 +01:00
i3c
ide
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input Merge branch 'parisc-5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux 2020-10-25 10:59:34 -07:00
interconnect
iommu
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irqchip treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
isdn
leds
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macintosh
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most
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ntb Bug fixes for v5.10 2020-10-25 11:12:31 -07:00
nubus
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of treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
opp
oprofile
parisc
parport
pci
pcmcia
perf
phy
pinctrl
platform
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power
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pps
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rapidio
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s390
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scsi block-5.10-2020-10-24 2020-10-24 12:46:42 -07:00
sfi
sh
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soc ARM: Devicetree updates 2020-10-24 10:44:18 -07:00
soundwire
spi
spmi
ssb
staging mm: remove kzfree() compatibility definition 2020-10-25 11:39:02 -07:00
target
tc
tee
thermal treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
thunderbolt
tty
uio
usb USB: serial: keyspan_pda: fix dropped unthrottle interrupts 2020-11-04 11:00:17 +01:00
vdpa
vfio
vhost
video
virt
virtio
visorbus
vlynq
vme
w1
watchdog
xen xen: branch for v5.10-rc1c 2020-10-25 10:55:35 -07:00
zorro
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