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55c2653569c6edd47069793532a8fb9f5dc2bdf4
openloongarch-linux-6.12/drivers
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maoxiaochuan 55c2653569 pwm: loongson: Fix u32 overflow in waveform calculation 
mul_u64_u64_div_u64() returns an u64 that might be bigger than U32_MAX.
To properly handle this case it must not be directly assigned to an u32
value.

Use a wider type for duty and period to make the idiom:

    duty = mul_u64_u64_div_u64(...)
    if (duty > U32_MAX)
        duty = U32_MAX;

actually work as intended.

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/44f3c764-8b65-49a9-b3ad-797e9fbb96f5@stanley.mountain
Fixes: 2b62c89448dd ("pwm: Add Loongson PWM controller support")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Reviewed-by: Binbin Zhou <zhoubinbin@loongson.cn>
Link: https://lore.kernel.org/r/20250412122124.1636152-2-u.kleine-koenig@baylibre.com
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2025-05-30 15:52:38 +08:00
..
accel
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
accessibility
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
acpi
LoongArch: Fix warnings during S3 suspend
2025-02-13 14:28:32 +08:00
amba
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
android
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
ata
ata: libata: Improve return value of atapi_check_dma()
2025-04-30 15:54:47 +08:00
atm
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
auxdisplay
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
base
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
bcma
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
block
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
bluetooth
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
bus
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
cache
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
cdrom
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
cdx
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
char
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
clk
Update to 14fc3074cfe039
2025-02-13 16:03:32 +08:00
clocksource
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
comedi
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
connector
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
counter
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
cpufreq
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
cpuidle
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
crypto
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
cxl
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
dax
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
dca
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
devfreq
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
dio
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
dma
bug: enable TIM_CCR_TCIE in lisa_dma.c
2025-03-01 05:19:09 +00:00
dma-buf
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
dpll
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
edac
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
eisa
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
extcon
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
firewire
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
firmware
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
fpga
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
fsi
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
gnss
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
gpio
gpio: loongson-64bit: Remove unneeded ngpio assignment
2025-03-26 12:55:15 +08:00
gpu
feat(drm): add st7789v tinydrm driver
2025-02-18 15:48:41 +00:00
greybus
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
hid
HID: wacom: fix when get product name maybe null pointer
2025-02-13 14:26:47 +08:00
hsi
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
hte
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
hv
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
hwmon
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
hwspinlock
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
hwtracing
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
i2c
i2c:fix bus broken after once xfer failed
2025-04-02 14:14:45 +08:00
i3c
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
idle
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
iio
Update to 14fc3074cfe039
2025-02-13 16:03:32 +08:00
infiniband
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
input
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
interconnect
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
iommu
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
ipack
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
irqchip
Update to 14fc3074cfe039
2025-02-13 16:03:32 +08:00
isdn
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
leds
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
macintosh
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
mailbox
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
mcb
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
md
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
media
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
memory
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
memstick
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
message
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
mfd
refactor: update loongson_timers_dma_burst_read
2025-03-01 05:19:20 +00:00
misc
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
mmc
update to 9f12731260
2025-03-26 13:04:16 +08:00
most
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
mtd
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
mux
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
net
net: stmmac: dwmac-loongson: Add new GMAC's PCI device ID support
2025-05-30 15:52:36 +08:00
nfc
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
ntb
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
nubus
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
nvdimm
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
nvme
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
nvmem
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
of
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
opp
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
parisc
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
parport
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
pci
PCI/MSI: Handle lack of irqdomain gracefully
2025-02-13 14:26:48 +08:00
pcmcia
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
peci
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
perf
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
phy
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
pinctrl
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
platform
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
pmdomain
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
pnp
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
power
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
powercap
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
pps
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
ps3
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
ptp
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
pwm
pwm: loongson: Fix u32 overflow in waveform calculation
2025-05-30 15:52:38 +08:00
rapidio
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
ras
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
regulator
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
remoteproc
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
reset
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
rpmsg
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
rtc
Update to 14fc3074cfe039
2025-02-13 16:03:32 +08:00
s390
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
sbus
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
scsi
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
sh
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
siox
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
slimbus
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
soc
soc: loongson: loongson2_guts: Add check for devm_kstrdup()
2025-03-26 12:55:14 +08:00
soundwire
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
spi
Update to 14fc3074cfe039
2025-02-13 16:03:32 +08:00
spmi
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
ssb
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
staging
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
target
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
tc
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
tee
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
thermal
update to e7567cc18
2025-04-17 19:59:01 +08:00
thunderbolt
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
tty
Update to 14fc3074cfe039
2025-02-13 16:03:32 +08:00
ufs
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
uio
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
usb
USB: pci-quirks: Fix HCCPARAMS register error for LS7A EHCI
2025-03-26 12:55:14 +08:00
vdpa
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
vfio
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
vhost
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
video
Update to 14fc3074cfe039
2025-02-13 16:03:32 +08:00
virt
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
virtio
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
w1
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
watchdog
Update to 14fc3074cfe039
2025-02-13 16:03:32 +08:00
xen
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
zorro
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
Kconfig
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00
Makefile
init src (linux-6.12.0)
2025-02-13 14:11:16 +08:00