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qinyu 877d5cd2ae cpufreq: warn about invalid vals to scaling_max/min_freq interfaces 
When echo an invalid val to scaling_min_freq:
> echo 123abc123 > scaling_min_freq
It looks weird to have a return val of 0:
> echo $?
> 0

Sane people won't echo strings like that into these interfaces but fuzz
tests may do. Also, maybe it's better to inform people if input is
invalid.

After this:
> echo 123abc123 > scaling_min_freq
> -bash: echo: write error: Invalid argument

Signed-off-by: qinyu <qinyu32@huawei.com>
Tested-by: zhangxiaofeng <zhangxiaofeng46@huawei.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-03-22 20:10:59 +01:00
..
accel
Merge tag 'mm-stable-2023-02-20-13-37' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2023-02-23 17:09:35 -08:00
accessibility
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acpi
ACPI: CPPC: Add auto select register read/write support
2023-03-17 19:06:23 +01:00
amba
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android
Merge tag 'char-misc-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2023-02-24 12:47:33 -08:00
ata
ata: ahci: Revert "ata: ahci: Add Tiger Lake UP{3,4} AHCI controller"
2023-03-03 18:43:02 +09:00
atm
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auxdisplay
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base
Merge tag 'irq-urgent-2023-03-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2023-03-05 11:19:16 -08:00
bcma
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block
Merge tag 'block-6.3-2023-03-03' of git://git.kernel.dk/linux
2023-03-03 10:21:39 -08:00
bluetooth
Bluetooth: btintel: Set Per Platform Antenna Gain(PPAG)
2023-02-09 14:20:04 -08:00
bus
Merge tag 'soc-drivers-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2023-02-27 10:04:49 -08:00
cdrom
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char
tpm: disable hwrng for fTPM on some AMD designs
2023-03-12 23:28:10 +02:00
clk
Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
2023-02-25 15:16:23 -08:00
clocksource
Merge tag 'timers-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2023-02-21 09:45:13 -08:00
comedi
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connector
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counter
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cpufreq
cpufreq: warn about invalid vals to scaling_max/min_freq interfaces
2023-03-22 20:10:59 +01:00
cpuidle
Merge tag 'soc-drivers-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2023-02-27 10:04:49 -08:00
crypto
Merge tag 'v6.3-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2023-03-05 11:32:30 -08:00
cxl
Merge tag 'cxl-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
2023-02-25 09:19:23 -08:00
dax
Merge tag 'cxl-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
2023-02-25 09:19:23 -08:00
dca
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devfreq
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dio
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dma
Merge tag 'dmaengine-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
2023-02-24 17:18:54 -08:00
dma-buf
dma-buf: make kobj_type structure constant
2023-02-17 09:16:34 +01:00
edac
Merge tag 'edac_updates_for_v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
2023-02-21 08:10:03 -08:00
eisa
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extcon
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firewire
Merge tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2023-02-24 12:58:55 -08:00
firmware
Merge tag 'soc-drivers-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2023-02-27 10:04:49 -08:00
fpga
Merge tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2023-02-24 12:58:55 -08:00
fsi
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gnss
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gpio
Merge tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2023-02-24 12:58:55 -08:00
gpu
Merge tag 'amd-drm-fixes-6.3-2023-03-09' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
2023-03-10 14:17:35 +10:00
greybus
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hid
Merge tag 'for-linus-2023030901' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
2023-03-09 10:17:23 -08:00
hsi
Merge tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2023-02-24 12:58:55 -08:00
hte
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hv
Merge tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2023-02-24 12:58:55 -08:00
hwmon
Merge tag 'mfd-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
2023-02-23 15:03:05 -08:00
hwspinlock
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hwtracing
Merge tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2023-02-24 12:58:55 -08:00
i2c
i2c: dev: Fix bus callback return values
2023-03-09 22:07:52 +01:00
i3c
Merge tag 'i3c/for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux
2023-02-28 16:05:01 -08:00
idle
Merge tag 'pm-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2023-02-21 12:13:58 -08:00
iio
Merge tag 'char-misc-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2023-02-24 12:47:33 -08:00
infiniband
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
2023-02-24 15:11:03 -08:00
input
Merge tag 'soc-drivers-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2023-02-27 10:04:49 -08:00
interconnect
Merge tag 'soc-dt-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2023-02-20 15:49:56 -08:00
iommu
Merge tag 'soc-drivers-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2023-02-27 10:04:49 -08:00
ipack
Merge tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2023-02-24 12:58:55 -08:00
irqchip
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2023-02-25 11:30:21 -08:00
isdn
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leds
Merge tag 'leds-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds
2023-02-23 15:09:31 -08:00
macintosh
Merge tag 'powerpc-6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
2023-02-25 11:00:06 -08:00
mailbox
mailbox: qcom-apcs-ipc: add IPQ5332 APSS clock support
2023-02-23 14:47:13 -06:00
mcb
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md
Merge tag 'flex-array-transformations-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
2023-02-25 12:53:42 -08:00
media
media: i2c: ov2685: convert to i2c's .probe_new()
2023-03-09 21:59:04 +01:00
memory
Merge tag 'soc-drivers-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2023-02-27 10:04:49 -08:00
memstick
Merge tag 'mmc-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
2023-02-27 09:47:26 -08:00
message
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mfd
Merge tag 'net-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2023-02-27 14:05:08 -08:00
misc
misc: ad525x_dpot-i2c: Convert to i2c's .probe_new()
2023-03-09 21:58:45 +01:00
mmc
Merge tag 'soc-drivers-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2023-02-27 10:04:49 -08:00
most
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mtd
Merge tag 'i2c-for-6.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2023-03-11 09:24:05 -08:00
mux
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net
Merge tag 'net-6.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2023-03-09 10:56:58 -08:00
nfc
nfc: fdp: add null check of devm_kmalloc_array in fdp_nci_i2c_read_device_properties
2023-02-28 11:48:28 +01:00
ntb
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nubus
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nvdimm
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2023-02-25 11:48:02 -08:00
nvme
Merge tag 'block-6.3-2023-03-03' of git://git.kernel.dk/linux
2023-03-03 10:21:39 -08:00
nvmem
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of
Merge tag 'iommu-updates-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
2023-02-24 13:40:13 -08:00
opp
OPP: fix error checking in opp_migrate_dentry()
2023-02-16 13:48:53 +01:00
parisc
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parport
Merge tag 'char-misc-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2023-02-24 12:47:33 -08:00
pci
Merge tag 'irq-urgent-2023-03-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2023-03-05 11:19:16 -08:00
pcmcia
Merge tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2023-02-24 12:58:55 -08:00
peci
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perf
Merge tag 'riscv-for-linus-6.3-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
2023-03-03 09:32:51 -08:00
phy
Merge tag 'soc-drivers-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2023-02-27 10:04:49 -08:00
pinctrl
Merge tag 'soc-drivers-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2023-02-27 10:04:49 -08:00
platform
platform: mellanox: mlx-platform: Initialize shift variable to 0
2023-03-07 12:08:30 +01:00
pnp
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power
Merge tag 'for-v6.3-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
2023-03-03 16:33:28 -08:00
powercap
Merge tag 'pm-6.3-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2023-03-03 10:30:58 -08:00
pps
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ps3
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ptp
ptp: vclock: use mutex to fix "sleep on atomic" bug
2023-02-22 21:23:48 -08:00
pwm
pwm: dwc: Use devm_pwmchip_add()
2023-02-20 12:26:35 +01:00
rapidio
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ras
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regulator
Merge tag 'regulator-fix-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
2023-03-02 09:21:25 -08:00
remoteproc
Merge tag 'soc-drivers-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2023-02-27 10:04:49 -08:00
reset
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rpmsg
Merge tag 'rpmsg-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux
2023-02-26 12:10:28 -08:00
rtc
Merge tag 'rtc-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
2023-03-03 09:15:50 -08:00
s390
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2023-03-03 14:41:50 -08:00
sbus
mm: replace vma->vm_flags direct modifications with modifier calls
2023-02-09 16:51:39 -08:00
scsi
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2023-03-10 20:45:53 -08:00
sh
Merge tag 'sh-for-v6.3-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux
2023-03-01 09:44:22 -08:00
siox
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slimbus
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soc
Merge tag 'soc-drivers-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2023-02-27 10:04:49 -08:00
soundwire
Merge tag 'soundwire-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire
2023-02-24 17:29:52 -08:00
spi
Merge tag 'spi-fix-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
2023-03-02 09:25:38 -08:00
spmi
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ssb
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staging
staging: r8188eu: delete driver
2023-03-09 10:06:28 +01:00
target
scsi: target: iscsi: Fix an error message in iscsi_check_key()
2023-03-06 16:50:42 -05:00
tc
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tee
Merge tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2023-02-24 12:58:55 -08:00
thermal
thermal: intel: int340x: processor_thermal: Fix deadlock
2023-03-03 20:34:49 +01:00
thunderbolt
Merge tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2023-02-24 12:58:55 -08:00
tty
serial: sc16is7xx: Convert to i2c's .probe_new()
2023-03-09 21:58:53 +01:00
ufs
scsi: ufs: mcq: qcom: Clean the return path of ufs_qcom_mcq_config_resource()
2023-03-06 18:33:12 -05:00
uio
Merge tag 'mm-stable-2023-02-20-13-37' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2023-02-23 17:09:35 -08:00
usb
Merge tag 'phy-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy
2023-02-24 17:22:11 -08:00
vdpa
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2023-02-25 11:48:02 -08:00
vfio
Merge tag 'vfio-v6.3-rc1' of https://github.com/awilliam/linux-vfio
2023-02-25 11:52:57 -08:00
vhost
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2023-02-25 11:48:02 -08:00
video
Merge tag 'tty-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
2023-02-24 12:17:14 -08:00
virt
virt/sev-guest: Return -EIO if certificate buffer is not large enough
2023-03-01 10:17:46 +01:00
virtio
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2023-02-25 11:48:02 -08:00
vlynq
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w1
w1: ds2482: Convert to i2c's .probe_new()
2023-03-09 21:58:57 +01:00
watchdog
Merge tag 'linux-watchdog-6.3-rc1' of git://www.linux-watchdog.org/linux-watchdog
2023-03-02 11:12:01 -08:00
xen
Merge tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2023-02-24 12:58:55 -08:00
zorro
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Kconfig
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Makefile
Merge tag 'kbuild-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2023-02-26 11:53:25 -08:00