Valentin Caron 82a99bc85c serial: stm32: prevent TDR register overwrite when sending x_char ... [ Upstream commit d3d079bde0 ] When sending x_char in stm32_usart_transmit_chars(), driver can overwrite the value of TDR register by the value of x_char. If this happens, the previous value that was present in TDR register will not be sent through uart. This code checks if the previous value in TDR register is sent before writing the x_char value into register. Fixes: 48a6092fb4 ("serial: stm32-usart: Add STM32 USART Driver") Cc: stable <stable@vger.kernel.org> Signed-off-by: Valentin Caron <valentin.caron@foss.st.com> Link: https://lore.kernel.org/r/20220111164441.6178-2-valentin.caron@foss.st.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-03-08 19:12:32 +01:00
..
accessibility	speakup-dectlk: Restore pitch setting	2022-02-16 12:56:37 +01:00
acpi	ACPI: PM: Revert "Only mark EC GPE for wakeup on Intel systems"	2022-02-23 12:03:18 +01:00
amba
android	binder: avoid potential data leakage when copying txn	2022-01-27 11:04:09 +01:00
ata	ata: pata_hpt37x: disable primary channel on HPT371	2022-03-02 11:48:04 +01:00
atm
auxdisplay	auxdisplay: charlcd: checking for pointer reference before dereferencing	2022-01-11 15:35:17 +01:00
base	driver core: Free DMA range map when device is released	2022-03-02 11:48:07 +01:00
bcma
block	block: loop:use kstatfs.f_bsize of backing file to set discard granularity	2022-03-08 19:12:30 +01:00
bluetooth	Bluetooth: btusb: Return error code when getting patch status failed	2022-01-27 11:05:22 +01:00
bus	bus: mhi: pci_generic: Add mru_default for Cinterion MV31-W	2022-02-16 12:56:39 +01:00
cdrom
char	random: wake up /dev/random writers after zap	2022-02-23 12:03:07 +01:00
clk	clk: jz4725b: fix mmc0 clock gating	2022-03-02 11:47:48 +01:00
clocksource	ARM: dts: Fix timer regression for beagleboard revision c	2022-02-16 12:56:21 +01:00
comedi
connector
counter
cpufreq	cpufreq: Fix initialization of min and max frequency QoS requests	2022-01-27 11:04:44 +01:00
cpuidle	cpuidle: Fix kobject memory leaks in error paths	2021-11-18 19:16:29 +01:00
crypto	crypto: octeontx2 - uninitialized variable in kvf_limits_store()	2022-01-27 11:05:30 +01:00
cxl	cxl/pmem: Fix reference counting for delayed work	2022-01-27 11:02:58 +01:00
dax
dca
devfreq
dio
dma	dmaengine: shdma: Fix runtime PM imbalance on error	2022-03-08 19:12:31 +01:00
dma-buf	dma-buf: heaps: Fix potential spectre v1 gadget	2022-02-08 18:34:06 +01:00
edac	EDAC: Fix calculation of returned address and next offset in edac_align_ptr()	2022-02-23 12:03:20 +01:00
eisa
extcon
firewire
firmware	efi/libstub: arm64: Fix image check alignment at entry	2022-02-01 17:27:11 +01:00
fpga
fsi
gnss
gpio	gpio: tegra186: Fix chip_data type confusion	2022-03-02 11:48:10 +01:00
gpu	drm/amd/pm: correct UMD pstate clocks for Dimgrey Cavefish and Beige Goby	2022-03-08 19:12:31 +01:00
greybus
hid	HID: amd_sfh: Add interrupt handler to process interrupts	2022-03-08 19:12:30 +01:00
hsi	HSI: core: Fix return freed object in hsi_new_client	2022-01-27 11:04:31 +01:00
hv	Drivers: hv: vmbus: Fix memory leak in vmbus_add_channel_kobj	2022-02-23 12:03:16 +01:00
hwmon	hwmon: Handle failure to register sensor with thermal zone correctly	2022-03-02 11:47:54 +01:00
hwspinlock
hwtracing	coresight: trbe: Defer the probe on offline CPUs	2021-11-18 19:16:06 +01:00
i2c	i2c: qup: allow COMPILE_TEST	2022-03-08 19:12:31 +01:00
i3c
idle
iio	iio: Fix error handling for PM	2022-03-02 11:48:04 +01:00
infiniband	IB/qib: Fix duplicate sysfs directory name	2022-03-02 11:48:08 +01:00
input	Input: clear BTN_RIGHT/MIDDLE on buttonpads	2022-03-08 19:12:29 +01:00
interconnect	interconnect: qcom: rpm: Prevent integer overflow in rate	2022-01-27 11:05:00 +01:00
iommu	iommu: Fix potential use-after-free during probe	2022-02-16 12:56:41 +01:00
ipack
irqchip	irqchip/sifive-plic: Add missing thead,c900-plic match string	2022-02-23 12:03:17 +01:00
isdn	mISDN: change function names to avoid conflicts	2022-01-11 15:35:18 +01:00
leds	leds: lp55xx: initialise output direction from dts	2022-01-27 11:04:21 +01:00
macintosh
mailbox	mailbox: change mailbox-mpfs compatible string	2022-01-27 11:05:05 +01:00
mcb
md	block: fix surprise removal for drivers calling blk_set_queue_dying	2022-02-23 12:03:15 +01:00
media	media: correct MEDIA_TEST_SUPPORT help text	2022-01-27 11:05:20 +01:00
memory	memory: renesas-rpc-if: Return error in case devm_ioremap_resource() fails	2022-01-27 11:03:11 +01:00
memstick	memstick: jmb38x_ms: use appropriate free function in jmb38x_ms_alloc_host()	2021-11-18 19:16:32 +01:00
message
mfd	mfd: tps65910: Set PWR_OFF bit during driver probe	2022-01-27 11:05:07 +01:00
misc	eeprom: ee1004: limit i2c reads to I2C_SMBUS_BLOCK_MAX	2022-02-16 12:56:33 +01:00
mmc	mmc: block: fix read single on recovery logic	2022-02-23 12:03:03 +01:00
most	most: fix control-message timeouts	2021-11-18 19:16:08 +01:00
mtd	mtd: core: Fix a conflict between MTD and NVMEM on wp-gpios property	2022-03-02 11:48:07 +01:00
mux
net	net: usb: cdc_mbim: avoid altsetting toggling for Telit FN990	2022-03-08 19:12:31 +01:00
nfc	NFC: st21nfca: Fix memory leak in device probe and remove	2022-01-05 12:42:36 +01:00
ntb
nubus
nvdimm	nvdimm/pmem: cleanup the disk if pmem_release_disk() is yet assigned	2021-11-18 19:17:07 +01:00
nvme	nvme: also mark passthrough-only namespaces ready in nvme_update_ns_info	2022-03-02 11:47:56 +01:00
nvmem	nvmem: core: Fix a conflict between MTD and NVMEM on wp-gpios property	2022-03-02 11:48:06 +01:00
of	of: base: Improve argument length mismatch error	2022-01-27 11:05:19 +01:00
opp	opp: Fix return in _opp_add_static_v2()	2021-11-18 19:17:00 +01:00
parisc	parisc: Fix sglist access in ccio-dma.c	2022-02-23 12:03:03 +01:00
parport
pci	PCI: hv: Fix NUMA node assignment when kernel boots with custom NUMA topology	2022-02-23 12:03:04 +01:00
pcmcia	pcmcia: fix setting of kthread task states	2022-01-27 11:04:02 +01:00
perf	perf/arm-cmn: Fix CPU hotplug unregistration	2022-01-27 11:03:36 +01:00
phy	phy: phy-mtk-tphy: Fix duplicated argument in phy-mtk-tphy	2022-02-23 12:03:17 +01:00
pinctrl	pinctrl: k210: Fix bias-pull-up	2022-03-02 11:48:09 +01:00
platform	surface: surface3_power: Fix battery readings on batteries without a serial number	2022-03-02 11:47:59 +01:00
pnp
power	power: reset: mt6397: Check for null res pointer	2022-01-27 11:03:49 +01:00
powercap
pps
ps3
ptp	net: fix SOF_TIMESTAMPING_BIND_PHC to work with multiple sockets	2022-01-27 11:03:52 +01:00
pwm
rapidio
ras
regulator	regulator: core: fix false positive in regulator_late_cleanup()	2022-03-08 19:12:29 +01:00
remoteproc	remoteproc: imx_rproc: Fix a resource leak in the remove function	2022-01-27 11:05:10 +01:00
reset	reset: renesas: Fix Runtime PM usage	2022-01-11 15:35:16 +01:00
rpmsg	rpmsg: char: Fix race between the release of rpmsg_eptdev and cdev	2022-02-01 17:27:07 +01:00
rtc	rtc: cmos: Evaluate century appropriate	2022-02-08 18:34:12 +01:00
s390	s390/cio: verify the driver availability for path_event call	2022-02-16 12:56:38 +01:00
sbus
scsi	scsi: qedi: Fix ABBA deadlock in qedi_process_tmf_resp() and qedi_process_cmd_cleanup_resp()	2022-02-23 12:03:22 +01:00
sh	maple: fix wrong return value of maple_bus_init().	2021-11-25 09:48:31 +01:00
siox
slimbus
soc	soc: aspeed: lpc-ctrl: Block error printing on probe defer cases	2022-02-23 12:03:19 +01:00
soundwire	soundwire: bus: stop dereferencing invalid slave pointer	2021-11-18 19:16:54 +01:00
spi	spi: spi-zynq-qspi: Fix a NULL pointer dereference in zynq_qspi_exec_mem_op()	2022-03-02 11:48:01 +01:00
spmi
ssb
staging	staging: fbtft: fb_st7789v: reset display before initialization	2022-03-02 11:48:07 +01:00
target	scsi: target: iscsi: Make sure the np under each tpg is unique	2022-02-16 12:56:12 +01:00
tc
tee	optee: use driver internal tee_context for some rpc	2022-03-02 11:47:51 +01:00
thermal	thermal: int340x: fix memory leak in int3400_notify()	2022-03-02 11:48:07 +01:00
thunderbolt	thunderbolt: Runtime PM activate both ends of the device link	2022-01-27 11:04:36 +01:00
tty	serial: stm32: prevent TDR register overwrite when sending x_char	2022-03-08 19:12:32 +01:00
uio
usb	usb: gadget: clear related members when goto fail	2022-03-08 19:12:31 +01:00
vdpa	vdpa/mlx5: Restore cur_num_vqs in case of failure in change_num_qps()	2022-01-27 11:05:36 +01:00
vfio
vhost	vhost/vsock: don't check owner in vhost_vsock_stop() while releasing	2022-03-02 11:47:48 +01:00
video	fbcon: Avoid 'cap' set but not used warning	2022-02-16 12:56:27 +01:00
virt	nitro_enclaves: Use get_user_pages_unlocked() call to handle mmap assert	2022-01-05 12:42:39 +01:00
virtio	virtio_ring: mark ring unused on error	2022-01-27 11:05:35 +01:00
visorbus
vlynq
vme
w1	w1: Misuse of get_user()/put_user() reported by sparse	2022-01-27 11:04:59 +01:00
watchdog	ar7: fix kernel builds for compiler test	2021-11-18 19:17:03 +01:00
xen	xen/gntdev: fix unmap notification order	2022-01-27 11:05:08 +01:00
zorro
Kconfig
Makefile	virtio: always enter drivers/virtio/	2021-12-22 09:32:39 +01:00