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Uwe Kleine-KönigandGreg Kroah-Hartman 9f9be0ec31 serial: stm32: Return IRQ_NONE in the ISR if no handling happend 
commit 13c785323b upstream.

If there is a stuck irq that the handler doesn't address, returning
IRQ_HANDLED unconditionally makes it impossible for the irq core to
detect the problem and disable the irq. So only return IRQ_HANDLED if
an event was handled.

A stuck irq is still problematic, but with this change at least it only
makes the UART nonfunctional instead of occupying the (usually only) CPU
by 100% and so stall the whole machine.

Fixes: 48a6092fb4 ("serial: stm32-usart: Add STM32 USART Driver")
Cc: stable@vger.kernel.org
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/5f92603d0dfd8a5b8014b2b10a902d91e0bb881f.1713344161.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-04-27 17:11:39 +02:00
..
accel
accel/ivpu: Fix deadlock in context_xa
2024-04-17 11:19:34 +02:00
accessibility
speakup: Fix 8bit characters from direct synth
2024-04-03 15:28:28 +02:00
acpi
ACPI: scan: Do not increase dep_unmet for already met dependencies
2024-04-17 11:19:26 +02:00
amba
…
android
binder: check offset alignment in binder_get_object()
2024-04-27 17:11:38 +02:00
ata
ata: libata-scsi: Fix ata_scsi_dev_rescan() error path
2024-04-17 11:19:25 +02:00
atm
atm: idt77252: fix a memleak in open_card_ubr0
2024-02-16 19:10:49 +01:00
auxdisplay
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base
driver core: Introduce device_link_wait_removal()
2024-04-10 16:36:03 +02:00
bcma
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block
aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts
2024-03-26 18:19:19 -04:00
bluetooth
Bluetooth: btintel: Fixe build regression
2024-04-13 13:07:41 +02:00
bus
bus: mhi: host: Add MHI_PM_SYS_ERR_FAIL state
2024-04-13 13:07:38 +02:00
cache
cache: ax45mp_cache: Align end size to cache boundary in ax45mp_dma_cache_wback()
2024-03-01 13:35:08 +01:00
cdrom
…
cdx
…
char
random: handle creditable entropy from atomic process context
2024-04-27 17:11:30 +02:00
clk
clk: mediatek: Do a runtime PM get on controllers during probe
2024-04-27 17:11:37 +02:00
clocksource
clocksource/drivers/arm_global_timer: Fix maximum prescaler value
2024-04-03 15:28:50 +02:00
comedi
comedi: vmk80xx: fix incomplete endpoint checking
2024-04-27 17:11:39 +02:00
connector
connector/cn_proc: revert "connector: Fix proc_event_num_listeners count not cleared"
2024-02-23 09:25:01 +01:00
counter
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cpufreq
cpufreq: Don't unregister cpufreq cooling on CPU hotplug
2024-04-13 13:07:32 +02:00
cpuidle
cpuidle: Avoid potential overflow in integer multiplication
2024-04-13 13:07:29 +02:00
crypto
crypto: sun8i-ce - Fix use after free in unprepare
2024-04-03 15:28:40 +02:00
cxl
cxl/core: Fix initialization of mbox_cmd.size_out in get event
2024-04-17 11:19:27 +02:00
dax
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dca
…
devfreq
PM / devfreq: Synchronize devfreq_monitor_[start/stop]
2024-02-05 20:14:15 +00:00
dio
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dma
dmaengine: tegra210-adma: Update dependency to ARCH_TEGRA
2024-03-26 18:19:43 -04:00
dma-buf
dma-buf: Fix NULL pointer dereference in sanitycheck()
2024-04-10 16:35:40 +02:00
edac
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eisa
…
extcon
extcon: fix possible name leak in extcon_dev_register()
2024-02-05 20:14:31 +00:00
firewire
firewire: ohci: prevent leak of left-over IRQ on unbind
2024-04-03 15:28:41 +02:00
firmware
firmware: arm_scmi: Make raw debugfs entries non-seekable
2024-04-17 11:19:27 +02:00
fpga
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fsi
…
gnss
…
gpio
gpio: cdev: fix missed label sanitizing in debounce_setup()
2024-04-10 16:36:02 +02:00
gpu
drm: panel-orientation-quirks: Add quirk for Lenovo Legion Go
2024-04-27 17:11:36 +02:00
greybus
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hid
HID: input: avoid polling stylus battery on Chromebook Pompom
2024-04-13 13:07:36 +02:00
hsi
…
hte
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hv
x86/hyperv: Use per cpu initial stack for vtl context
2024-03-26 18:20:06 -04:00
hwmon
hwmon: (amc6821) add of_match table
2024-04-03 15:28:28 +02:00
hwspinlock
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hwtracing
hwtracing: hisi_ptt: Move type check to the beginning of hisi_ptt_pmu_event_init()
2024-03-26 18:20:06 -04:00
i2c
i2c: designware: Fix RX FIFO depth define on Wangxun 10Gb NIC
2024-04-13 13:07:35 +02:00
i3c
i3c: dw: Disable IBI IRQ depends on hot-join and SIR enabling
2024-03-26 18:20:01 -04:00
idle
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iio
iio: imu: inv_mpu6050: fix FIFO parsing when empty
2024-04-03 15:28:45 +02:00
infiniband
RDMA/mlx5: Fix port number for counter query in multi-port configuration
2024-04-27 17:11:34 +02:00
input
Input: xpad - add support for Snakebyte GAMEPADs
2024-04-13 13:07:37 +02:00
interconnect
interconnect: Don't access req_list while it's being manipulated
2024-04-27 17:11:37 +02:00
iommu
iommu/vt-d: Allocate local memory for page request queue
2024-04-17 11:19:33 +02:00
ipack
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irqchip
irqchip/renesas-rzg2l: Prevent spurious interrupts when setting trigger type
2024-04-03 15:28:52 +02:00
isdn
…
leds
leds: trigger: netdev: Fix kernel panic on interface rename trig notify
2024-04-03 15:28:27 +02:00
macintosh
…
mailbox
mailbox: arm_mhuv2: Fix a bug for mhuv2_sender_interrupt
2024-02-05 20:14:31 +00:00
mcb
…
md
raid1: fix use-after-free for original bio in raid1_write_request()
2024-04-17 11:19:25 +02:00
media
media: videobuf2: request more buffers for vb2_read
2024-04-27 17:11:30 +02:00
memory
memory: tegra: Correct DLA client names
2024-03-26 18:19:32 -04:00
memstick
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message
…
mfd
mfd: cs42l43: Fix wrong GPIO_FN_SEL and SPI_CLK_CONFIG1 defaults
2024-03-26 18:19:55 -04:00
misc
VMCI: Fix possible memcpy() run-time warning in vmci_datagram_invoke_guest_handler()
2024-04-13 13:07:41 +02:00
mmc
mmc: omap: restore original power up/down steps
2024-04-17 11:19:26 +02:00
most
…
mtd
mtd: rawnand: Constrain even more when continuous reads are enabled
2024-04-03 15:28:35 +02:00
mux
…
net
net/mlx5: E-switch, store eswitch pointer before registering devlink_param
2024-04-27 17:11:38 +02:00
nfc
…
ntb
NTB: fix possible name leak in ntb_register_device()
2024-03-26 18:19:48 -04:00
nubus
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nvdimm
…
nvme
drivers/nvme: Add quirks for device 126f:2262
2024-04-13 13:07:39 +02:00
nvmem
nvmem: meson-efuse: fix function pointer type mismatch
2024-04-03 15:28:28 +02:00
of
of: module: prevent NULL pointer dereference in vsnprintf()
2024-04-10 16:36:06 +02:00
opp
OPP: debugfs: Fix warning around icc_get_name()
2024-03-26 18:19:40 -04:00
parisc
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parport
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pci
PCI: Simplify pcie_capability_clear_and_set_word() to ..._clear_word()
2024-04-27 17:11:36 +02:00
pcmcia
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peci
…
perf
drivers/perf: hisi: Enable HiSilicon Erratum 162700402 quirk for HIP09
2024-04-13 13:07:36 +02:00
phy
phy: tegra: xusb: Add API to retrieve the port number of phy
2024-04-03 15:28:28 +02:00
pinctrl
pinctrl: renesas: checker: Limit cfg reg enum checks to provided IDs
2024-04-13 13:07:34 +02:00
platform
platform/x86/amd/pmc: Extend Framework 13 quirk to more BIOSes
2024-04-27 17:11:37 +02:00
pmdomain
pmdomain: imx8mp-blk-ctrl: imx8mp_blk: Add fdcc clock to hdmimix domain
2024-04-13 13:07:30 +02:00
pnp
PNP: ACPI: fix fortify warning
2024-02-05 20:14:15 +00:00
power
power: supply: bq27xxx-i2c: Do not free non existing IRQ
2024-03-06 14:48:37 +00:00
powercap
powercap: intel_rapl_tpmi: Fix System Domain probing
2024-04-03 15:28:19 +02:00
pps
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ps3
…
ptp
…
pwm
pwm: img: fix pwm clock lookup
2024-04-03 15:28:52 +02:00
rapidio
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ras
…
regulator
regulator: userspace-consumer: add module device table
2024-03-26 18:19:34 -04:00
remoteproc
remoteproc: virtio: Fix wdg cannot recovery remote processor
2024-04-03 15:28:16 +02:00
reset
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rpmsg
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rtc
rtc: mt6397: select IRQ_DOMAIN instead of depending on it
2024-03-26 18:20:06 -04:00
s390
s390/cio: fix race condition during online processing
2024-04-27 17:11:34 +02:00
sbus
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scsi
scsi: core: Fix handling of SCMD_FAIL_IF_RECOVERING
2024-04-27 17:11:30 +02:00
sh
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siox
…
slimbus
slimbus: core: Remove usage of the deprecated ida_simple_xx() API
2024-04-03 15:28:28 +02:00
soc
soc: fsl: qbman: Use raw spinlock for cgr_lock
2024-04-03 15:28:32 +02:00
soundwire
ASoC: Intel: common: DMI remap for rebranded Intel NUC M15 (LAPRC710) laptops
2024-04-13 13:07:34 +02:00
spi
spi: mchp-pci1xxx: Fix a possible null pointer dereference in pci1xxx_spi_probe
2024-04-10 16:36:01 +02:00
spmi
spmi: mediatek: Fix UAF on device remove
2024-02-05 20:14:32 +00:00
ssb
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staging
staging: vc04_services: fix information leak in create_component()
2024-04-03 15:28:59 +02:00
target
scsi: target: pscsi: Fix bio_put() for error case
2024-03-01 13:34:59 +01:00
tc
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tee
tee: optee: Fix kernel panic caused by incorrect error handling
2024-04-03 15:28:44 +02:00
thermal
thermal/of: Assume polling-delay(-passive) 0 when absent
2024-04-13 13:07:39 +02:00
thunderbolt
thunderbolt: Fix wake configurations after device unplug
2024-04-27 17:11:38 +02:00
tty
serial: stm32: Return IRQ_NONE in the ISR if no handling happend
2024-04-27 17:11:39 +02:00
ufs
scsi: ufs: qcom: Add missing interconnect bandwidth values for Gear 5
2024-04-27 17:11:31 +02:00
uio
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usb
usb: new quirk to reduce the SET_ADDRESS request timeout
2024-04-27 17:11:36 +02:00
vdpa
vdpa/mlx5: Allow CVQ size changes
2024-03-26 18:20:10 -04:00
vfio
vfio/pds: Make sure migration file isn't accessed after reset
2024-04-03 15:28:59 +02:00
vhost
vhost: Add smp_rmb() in vhost_enable_notify()
2024-04-17 11:19:35 +02:00
video
fbmon: prevent division by zero in fb_videomode_from_videomode()
2024-04-13 13:07:40 +02:00
virt
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virtio
virtio: reenable config if freezing device failed
2024-04-03 15:28:36 +02:00
vlynq
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w1
…
watchdog
watchdog: stm32_iwdg: initialize default timeout
2024-03-26 18:20:02 -04:00
xen
x86/xen: attempt to inflate the memory balloon on PVH
2024-04-13 13:07:39 +02:00
zorro
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Kconfig
…
Makefile
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