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Mikulas Patocka b541f470d4 drm/udl: fix display corruption of the last line 
commit 99ec9e7751 upstream.

The displaylink hardware has such a peculiarity that it doesn't render a
command until next command is received. This produces occasional
corruption, such as when setting 22x11 font on the console, only the first
line of the cursor will be blinking if the cursor is located at some
specific columns.

When we end up with a repeating pixel, the driver has a bug that it leaves
one uninitialized byte after the command (and this byte is enough to flush
the command and render it - thus it fixes the screen corruption), however
whe we end up with a non-repeating pixel, there is no byte appended and
this results in temporary screen corruption.

This patch fixes the screen corruption by always appending a byte 0xAF at
the end of URB. It also removes the uninitialized byte.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-11 16:29:16 +02:00
..
accessibility
acpi acpi: Add helper for deactivating memory region 2018-07-08 15:30:46 +02:00
amba ARM: amba: Don't read past the end of sysfs "driver_override" buffer 2018-05-01 12:58:21 -07:00
android ANDROID: binder: prevent transactions into own process. 2018-05-01 12:58:20 -07:00
ata libata: Drop SanDisk SD7UB3Q*G1001 NOLPM quirk 2018-06-26 08:06:32 +08:00
atm atm: zatm: fix memcmp casting 2018-07-08 15:30:52 +02:00
auxdisplay auxdisplay: fix broken menu 2018-07-03 11:24:56 +02:00
base PM / OPP: Update voltage in case freq == old_freq 2018-07-03 11:24:47 +02:00
bcma
block drbd: fix access after free 2018-07-11 16:29:14 +02:00
bluetooth Bluetooth: hci_qca: Avoid missing rampatch failure with userspace fw loader 2018-07-03 11:24:49 +02:00
bus
cdrom cdrom: do not call check_disk_change() inside cdrom_open() 2018-05-30 07:52:34 +02:00
char tpm: fix race condition in tpm_common_write() 2018-07-03 11:24:53 +02:00
clk clk: at91: PLL recalc_rate() now using cached MUL and DIV values 2018-07-03 11:24:59 +02:00
clocksource clocksource/drivers/imx-tpm: Correct some registers operation flow 2018-06-21 04:02:40 +09:00
connector
cpufreq cpufreq: intel_pstate: Fix scaling max/min limits with Turbo 3.0 2018-07-03 11:24:56 +02:00
cpuidle cpuidle: powernv: Fix promotion from snooze if next state disabled 2018-07-03 11:24:51 +02:00
crypto crypto: omap-sham - fix memleak 2018-06-16 09:45:18 +02:00
dax
dca
devfreq PM / devfreq: Fix potential NULL pointer dereference in governor_store 2018-04-12 12:32:13 +02:00
dio
dma dmaengine: qcom: bam_dma: get num-channels and num-ees from dt 2018-05-30 07:52:37 +02:00
dma-buf dma-buf: remove redundant initialization of sg_table 2018-06-05 11:41:57 +02:00
edac x86/mce/AMD, EDAC/mce_amd: Enumerate Reserved SMCA bank type 2018-04-19 08:56:20 +02:00
eisa
extcon extcon: intel-cht-wc: Set direction and drv flags for V5 boost GPIO 2018-04-24 09:36:29 +02:00
firewire firewire-ohci: work around oversized DMA reads on JMicron controllers 2018-04-26 11:02:03 +02:00
firmware efi/libstub/arm64: Handle randomized TEXT_OFFSET 2018-06-21 04:03:01 +09:00
fmc
fpga fpga-manager: altera-ps-spi: preserve nCONFIG state 2018-05-01 12:58:24 -07:00
fsi
gpio gpio: No NULL owner 2018-06-16 09:45:14 +02:00
gpu drm/udl: fix display corruption of the last line 2018-07-11 16:29:16 +02:00
hid HID: wacom: Correct logical maximum Y for 2nd-gen Intuos Pro large 2018-06-26 08:06:33 +08:00
hsi
hv Drivers: hv: vmbus: do not mark HV_PCIE as perf_device 2018-04-19 08:56:16 +02:00
hwmon hwmon: (pmbus/adm1275) Accept negative page register values 2018-05-30 07:52:34 +02:00
hwspinlock
hwtracing intel_th: Use correct device when freeing buffers 2018-06-05 11:41:59 +02:00
i2c i2c: viperboard: return message count on master_xfer success 2018-06-21 04:03:00 +09:00
ide cdrom: do not call check_disk_change() inside cdrom_open() 2018-05-30 07:52:34 +02:00
idle
iio iio: sca3000: Fix an error handling path in 'sca3000_probe()' 2018-07-03 11:24:57 +02:00
infiniband RDMA/mlx4: Discard unknown SQP work requests 2018-07-03 11:24:54 +02:00
input Input: elantech - fix V4 report decoding for module with middle key 2018-07-03 11:25:04 +02:00
iommu iommu/vt-d: fix shift-out-of-bounds in bug checking 2018-06-21 04:02:53 +09:00
ipack
irqchip irqchip/gic-v3-its: Don't bind LPI to unavailable NUMA node 2018-07-03 11:24:56 +02:00
isdn isdn: eicon: fix a missing-check bug 2018-06-11 22:49:19 +02:00
leds leds: pm8058: Silence pointer to integer size warning 2018-03-19 08:42:50 +01:00
lightnvm
macintosh drivers: macintosh: rack-meter: really fix bogus memsets 2018-05-30 07:52:27 +02:00
mailbox
mcb
md md: remove special meaning of ->quiesce(.., 2) 2018-07-08 15:30:50 +02:00
media media: dvb_frontend: fix locking issues at dvb_frontend_get_event() 2018-07-03 11:25:02 +02:00
memory
memstick
message scsi: mptfusion: Add bounds check in mptctl_hp_targetinfo() 2018-05-25 16:17:47 +02:00
mfd mfd: intel-lpss: Fix Intel Cannon Lake LPSS I2C input clock 2018-07-03 11:25:00 +02:00
misc cxl: Disable prefault_mode in Radix mode 2018-07-03 11:24:51 +02:00
mmc mmc: sdhci-iproc: add SDHCI_QUIRK2_HOST_OFF_CARD_ON for cygnus 2018-05-30 07:51:48 +02:00
mtd mtd: rawnand: fix return value check for bad block status 2018-07-08 15:30:51 +02:00
mux
net net: dsa: b53: Add BCM5389 support 2018-07-08 15:30:53 +02:00
nfc NFC: pn533: don't send USB data off of the stack 2018-06-16 09:45:15 +02:00
ntb ntb_transport: Fix bug with max_mw_size parameter 2018-04-26 11:02:13 +02:00
nubus
nvdimm linvdimm, pmem: Preserve read-only setting for pmem devices 2018-07-03 11:24:58 +02:00
nvme nvme: Set integrity flag for user passthrough commands 2018-06-21 04:02:53 +09:00
nvmem
of of: platform: stop accessing invalid dev in of_platform_device_destroy 2018-07-03 11:24:52 +02:00
oprofile
parisc parisc/pci: Switch LBA PCI bus from Hard Fail to Soft Fail mode 2018-05-30 07:52:28 +02:00
parport parport_pc: Add support for WCH CH382L PCI-E single parallel port card. 2018-04-08 14:26:31 +02:00
pci PCI: pciehp: Clear Presence Detect and Data Link Layer Status Changed on resume 2018-07-03 11:24:56 +02:00
pcmcia PCMCIA / PM: Avoid noirq suspend aborts during suspend-to-idle 2018-05-30 07:52:39 +02:00
perf
phy phy: qcom-qusb2: Fix crash if nvmem cell not specified 2018-06-16 09:45:16 +02:00
pinctrl pinctrl: devicetree: Fix pctldev pointer overwrite 2018-07-03 11:24:56 +02:00
platform platform/x86: asus-wmi: Fix NULL pointer dereference 2018-07-08 15:30:53 +02:00
pnp
power power: supply: ltc2941-battery-gauge: Fix temperature units 2018-05-30 07:52:38 +02:00
powercap
pps
ps3
ptp
pwm pwm: lpss: platform: Save/restore the ctrl register over a suspend/resume 2018-07-03 11:25:03 +02:00
rapidio
ras
regulator regulator: of: Add a missing 'of_node_put()' in an error handling path of 'of_regulator_match()' 2018-05-30 07:52:41 +02:00
remoteproc remoteproc: qcom: Fix potential device node leaks 2018-06-21 04:02:48 +09:00
reset
rpmsg rpmsg: smd: do not use mananged resources for endpoints and channels 2018-07-03 11:24:59 +02:00
rtc rtc: sun6i: Fix bit_idx value for clk_register_gate 2018-07-03 11:24:59 +02:00
s390 s390/dasd: use blk_mq_rq_from_pdu for per request data 2018-07-08 15:30:51 +02:00
sbus
scsi scsi: sg: mitigate read/write abuse 2018-07-11 16:29:14 +02:00
sfi
sh
sn
soc soc: rockchip: power-domain: Fix wrong value when power up pd with writemask 2018-07-03 11:24:51 +02:00
spi spi: bcm2835aux: ensure interrupts are enabled for shared handler 2018-06-21 04:02:54 +09:00
spmi
ssb
staging staging: android: ion: Return an ERR_PTR in ion_map_kernel 2018-07-08 15:30:47 +02:00
target scsi: target: Fix truncated PR-in ReadKeys response 2018-07-11 16:29:14 +02:00
tc
tee tee: check shm references are consistent in offset/size 2018-06-21 04:02:54 +09:00
thermal thermal: bcm2835: Stop using printk format %pCr 2018-07-03 11:24:48 +02:00
thunderbolt thunderbolt: Prevent crash when ICM firmware is not running 2018-04-24 09:36:29 +02:00
tty vt: prevent leaking uninitialized data to userspace via /dev/vcs* 2018-07-08 15:30:47 +02:00
uio uio_hv_generic: check that host supports monitor page 2018-04-12 12:32:19 +02:00
usb xhci: Fix kernel oops in trace_xhci_free_virt_device 2018-07-08 15:30:47 +02:00
uwb
vfio vfio: Use get_user_pages_longterm correctly 2018-07-11 16:29:15 +02:00
vhost vhost: fix info leak due to uninitialized memory 2018-06-26 08:06:33 +08:00
video video: uvesafb: Fix integer overflow in allocation 2018-07-03 11:25:02 +02:00
virt
virtio virtio_ring: fix num_free handling in error case 2018-03-15 10:54:32 +01:00
vlynq
vme
w1 1wire: family module autoload fails because of upper/lower case mismatch. 2018-07-03 11:24:47 +02:00
watchdog watchdog: asm9260_wdt: fix error handling in asm9260_wdt_probe() 2018-05-30 07:52:36 +02:00
xen xen: Remove unnecessary BUG_ON from __unbind_from_irq() 2018-07-03 11:25:03 +02:00
zorro zorro: Set up z->dev.dma_mask for the DMA API 2018-05-30 07:52:30 +02:00
Kconfig
Makefile usb: build drivers/usb/common/ when USB_SUPPORT is set 2018-02-25 11:07:53 +01:00