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Li Hua 6ff51a99cb watchdog: pcwd_usb: Fix attempting to access uninitialized memory 
[ Upstream commit 7d06c07c67100fd0f8e6b3ab7145ce789f788117 ]

The stack variable msb and lsb may be used uninitialized in function
usb_pcwd_get_temperature and usb_pcwd_get_timeleft when usb card no response.

The build waring is:
drivers/watchdog/pcwd_usb.c:336:22: error: ‘lsb’ is used uninitialized in this function [-Werror=uninitialized]
  *temperature = (lsb * 9 / 5) + 32;
                  ~~~~^~~
drivers/watchdog/pcwd_usb.c:328:21: note: ‘lsb’ was declared here
  unsigned char msb, lsb;
                     ^~~
cc1: all warnings being treated as errors
scripts/Makefile.build:250: recipe for target 'drivers/watchdog/pcwd_usb.o' failed
make[3]: *** [drivers/watchdog/pcwd_usb.o] Error 1

Fixes: b7e04f8c61a4 ("mv watchdog tree under drivers")
Signed-off-by: Li Hua <hucool.lihua@huawei.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20221116020706.70847-1-hucool.lihua@huawei.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-11 16:31:58 +01:00
..
acquirewdt.c
…
advantechwdt.c
watchdog: advantechwdt: mark expected switch fall-through
2017-12-28 20:45:28 +01:00
alim1535_wdt.c
watchdog: alim1535_wdt: mark expected switch fall-through
2017-12-28 20:45:28 +01:00
alim7101_wdt.c
treewide: Switch DEFINE_TIMER callbacks to struct timer_list *
2017-11-21 15:57:05 -08:00
ar7_wdt.c
watchdog: add SPDX identifiers for watchdog subsystem
2018-03-24 10:19:40 +01:00
asm9260_wdt.c
watchdog: asm9260_wdt: fix error handling in asm9260_wdt_probe()
2018-03-03 17:04:16 +01:00
aspeed_wdt.c
watchdog: aspeed: fix hardware timeout calculation
2021-07-20 16:16:13 +02:00
at91rm9200_wdt.c
watchdog: add SPDX identifiers for watchdog subsystem
2018-03-24 10:19:40 +01:00
at91sam9_wdt.c
watchdog: at91sam9_wdt: use devm_request_irq to avoid missing free_irq() in error path
2023-03-11 16:31:58 +01:00
at91sam9_wdt.h
watchdog: add SPDX identifiers for watchdog subsystem
2018-03-24 10:19:40 +01:00
ath79_wdt.c
mips: separate extable.h, switch module.h to it
2016-10-05 18:36:18 -04:00
atlas7_wdt.c
watchdog: constify watchdog_ops structures
2017-02-24 14:00:23 -08:00
bcm47xx_wdt.c
watchdog: add SPDX identifiers for watchdog subsystem
2018-03-24 10:19:40 +01:00
bcm63xx_wdt.c
watchdog: add SPDX identifiers for watchdog subsystem
2018-03-24 10:19:40 +01:00
bcm2835_wdt.c
watchdog: bcm2835_wdt: Fix module autoload
2019-09-06 10:22:02 +02:00
bcm7038_wdt.c
watchdog: add SPDX identifiers for watchdog subsystem
2018-03-24 10:19:40 +01:00
bcm_kona_wdt.c
watchdog: add SPDX identifiers for watchdog subsystem
2018-03-24 10:19:40 +01:00
booke_wdt.c
watchdog: constify watchdog_ops structures
2017-02-24 14:00:23 -08:00
cadence_wdt.c
watchdog: simplify getting .drvdata
2018-05-21 21:24:40 +02:00
coh901327_wdt.c
headers: separate linux/mod_devicetable.h from linux/platform_device.h
2018-07-07 17:52:26 +02:00
cpu5wdt.c
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
cpwd.c
watchdog: cpwd: Convert timers to use timer_setup()
2017-11-02 15:50:26 -07:00
da9052_wdt.c
watchdog: add SPDX identifiers for watchdog subsystem
2018-03-24 10:19:40 +01:00
da9055_wdt.c
watchdog: add SPDX identifiers for watchdog subsystem
2018-03-24 10:19:40 +01:00
da9062_wdt.c
watchdog: da9062: No need to ping manually before setting timeout
2020-06-25 15:32:58 +02:00
da9063_wdt.c
watchdog: da9063: remove duplicated timeout_to_sel calls
2018-06-07 12:41:43 +02:00
davinci_wdt.c
headers: separate linux/mod_devicetable.h from linux/platform_device.h
2018-07-07 17:52:26 +02:00
diag288_wdt.c
watchdog: diag288_wdt: fix __diag288() inline assembly
2023-02-22 12:47:15 +01:00
digicolor_wdt.c
watchdog: add SPDX identifiers for watchdog subsystem
2018-03-24 10:19:40 +01:00
dw_wdt.c
watchdog: dw: save/restore control and timeout across suspend/resume
2018-03-13 19:14:19 +01:00
ebc-c384_wdt.c
watchdog: add SPDX identifiers for watchdog subsystem
2018-03-24 10:19:40 +01:00
ep93xx_wdt.c
watchdog: ep93xx_wdt: cleanup and let the core handle the heartbeat
2017-02-24 14:00:23 -08:00
eurotechwdt.c
watchdog: eurotechwdt: mark expected switch fall-through
2017-12-28 20:45:51 +01:00
f71808e_wdt.c
watchdog: f71808e_wdt: fix inaccurate report in WDIOC_GETTIMEOUT
2021-11-26 11:36:15 +01:00
ftwdt010_wdt.c
watchdog: ftwdt010: Make interrupt optional
2017-12-28 20:45:02 +01:00
gef_wdt.c
…
geodewdt.c
…
gpio_wdt.c
watchdog: gpio: change order for setting default timeout
2018-03-03 17:04:15 +01:00
hpwdt.c
watchdog: hpwdt: Claim NMIs generated by iLO5
2018-05-21 21:24:42 +02:00
i6300esb.c
watchdog: i6300esb: remove info message and version number
2017-12-28 20:45:18 +01:00
ib700wdt.c
watchdog: ib700wdt: mark expected switch fall-through
2017-12-28 20:45:52 +01:00
ibmasr.c
…
ie6xx_wdt.c
…
imgpdc_wdt.c
headers: separate linux/mod_devicetable.h from linux/platform_device.h
2018-07-07 17:52:26 +02:00
imx2_wdt.c
watchdog: imx2_wdt: fix min() calculation in imx2_wdt_set_timeout
2019-10-11 18:21:00 +02:00
indydog.c
…
intel_scu_watchdog.c
…
intel_scu_watchdog.h
…
intel-mid_wdt.c
watchdog: intel-mid_wdt: Keep watchdog running
2017-06-05 20:37:35 +02:00
iop_wdt.c
…
it87_wdt.c
watchdog: it87_wdt: constify watchdog_ops structure
2017-09-09 20:06:25 +02:00
it8712f_wdt.c
…
iTCO_vendor_support.c
…
iTCO_vendor.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
iTCO_wdt.c
Revert "watchdog: iTCO_wdt: Account for rebooting on second timeout"
2021-08-08 08:54:29 +02:00
ixp4xx_wdt.c
…
jz4740_wdt.c
watchdog: JZ4740: Drop module remove function
2018-05-14 23:58:23 +01:00
Kconfig
ar7: fix kernel builds for compiler test
2021-11-26 11:36:15 +01:00
kempld_wdt.c
include/linux/compiler*.h: make compiler-*.h mutually exclusive
2018-08-22 17:31:34 -07:00
ks8695_wdt.c
…
lantiq_wdt.c
watchdog: lantiq: access boot cause register through regmap
2017-09-04 13:53:15 +02:00
loongson1_wdt.c
watchdog: loongson1: Add Loongson1 SoC watchdog driver
2016-12-16 06:53:55 -08:00
lpc18xx_wdt.c
watchdog: Fix possible use-after-free by calling del_timer_sync()
2021-07-20 16:16:11 +02:00
m54xx_wdt.c
…
machzwd.c
treewide: Switch DEFINE_TIMER callbacks to struct timer_list *
2017-11-21 15:57:05 -08:00
Makefile
watchdog: add driver for the MEN 16z069 IP-Core
2018-08-02 15:57:12 +02:00
max63xx_wdt.c
headers: separate linux/mod_devicetable.h from linux/platform_device.h
2018-07-07 17:52:26 +02:00
max77620_wdt.c
headers: separate linux/mod_devicetable.h from linux/platform_device.h
2018-07-07 17:52:26 +02:00
mei_wdt.c
watchdog: mei_wdt: request stop on unregister
2021-03-04 09:39:55 +01:00
mena21_wdt.c
watchdog: mena21_wdt: Drop unnecessary mutex lock
2018-05-21 21:25:23 +02:00
menf21bmc_wdt.c
…
menz69_wdt.c
watchdog: add driver for the MEN 16z069 IP-Core
2018-08-02 15:57:12 +02:00
meson_gxbb_wdt.c
watchdog: meson: Fix the wrong value of left time
2019-12-05 09:19:44 +01:00
meson_wdt.c
watchdog: meson: allow setting timeout in devicetree
2018-03-03 17:04:14 +01:00
mixcomwd.c
treewide: Switch DEFINE_TIMER callbacks to struct timer_list *
2017-11-21 15:57:05 -08:00
moxart_wdt.c
headers: separate linux/mod_devicetable.h from linux/platform_device.h
2018-07-07 17:52:26 +02:00
mpc8xxx_wdt.c
watchdog: mpc8xxx: use the core worker function
2017-12-28 20:45:36 +01:00
mt7621_wdt.c
watchdog: mt7621_wdt/rt2880_wdt: Fix compilation problem
2019-02-27 10:08:52 +01:00
mtk_wdt.c
watchdog: add SPDX identifiers for watchdog subsystem
2018-03-24 10:19:40 +01:00
mtx-1_wdt.c
watchdog: add SPDX identifiers for watchdog subsystem
2018-03-24 10:19:40 +01:00
mv64x60_wdt.c
…
ni903x_wdt.c
…
nic7018_wdt.c
watchdog: nic7018_wdt: Add NIC7018 watchdog driver
2017-02-24 14:00:23 -08:00
npcm_wdt.c
watchdog: Add Nuvoton NPCM watchdog driver
2018-03-24 10:19:39 +01:00
nuc900_wdt.c
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
nv_tco.c
watchdog: add support for MCP78S chipset in nv_tco
2016-07-17 21:04:13 +02:00
nv_tco.h
…
octeon-wdt-main.c
watchdog: octeon-wdt: Add support for 78XX SOCs.
2017-09-04 21:19:03 +02:00
octeon-wdt-nmi.S
watchdog: octeon-wdt: Remove old boot vector code.
2017-09-04 21:19:03 +02:00
of_xilinx_wdt.c
watchdog: simplify getting .drvdata
2018-05-21 21:24:40 +02:00
omap_wdt.c
watchdog: Fix OMAP watchdog early handling
2021-11-26 11:35:59 +01:00
omap_wdt.h
…
orion_wdt.c
watchdog: orion_wdt: Mark watchdog as active when running at probe
2018-08-02 15:57:09 +02:00
pc87413_wdt.c
Annotate hardware config module parameters in drivers/watchdog/
2017-04-20 12:02:32 +01:00
pcwd_pci.c
watchdog: pcwd_pci: mark expected switch fall-through
2017-12-28 20:45:29 +01:00
pcwd_usb.c
watchdog: pcwd_usb: Fix attempting to access uninitialized memory
2023-03-11 16:31:58 +01:00
pcwd.c
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
pic32-dmt.c
watchdog: pic32-dmt: Remove .owner field for driver
2016-07-25 12:02:32 +02:00
pic32-wdt.c
watchdog: pic32-wdt: Fix return value check in pic32_wdt_drv_probe()
2016-07-25 12:02:43 +02:00
pika_wdt.c
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
pnx833x_wdt.c
…
pnx4008_wdt.c
watchdog: pnx4008: make use of timeout-secs provided in devicetree
2018-03-03 17:04:13 +01:00
pretimeout_noop.c
watchdog: pretimeout: add noop pretimeout governor
2016-10-08 10:27:13 +02:00
pretimeout_panic.c
watchdog: pretimeout: add panic pretimeout governor
2016-10-08 10:27:17 +02:00
qcom-wdt.c
watchdog: qcom: Avoid context switch in restart handler
2020-12-30 11:26:05 +01:00
rave-sp-wdt.c
watchdog: Add RAVE SP watchdog driver
2018-01-08 10:08:36 +00:00
rc32434_wdt.c
…
rdc321x_wdt.c
drivers: watchdog: rdc321x_wdt: Fix race condition bugs
2020-11-05 11:08:44 +01:00
renesas_wdt.c
watchdog: renesas_wdt: stop when unregistering
2019-11-24 08:19:41 +01:00
retu_wdt.c
…
riowd.c
…
rn5t618_wdt.c
watchdog: rn5t618_wdt: fix module aliases
2020-02-01 09:37:08 +00:00
rt2880_wdt.c
watchdog: mt7621_wdt/rt2880_wdt: Fix compilation problem
2019-02-27 10:08:52 +01:00
rtd119x_wdt.c
watchdog: rtd119x_wdt: Fix remove function
2020-01-27 14:50:45 +01:00
rza_wdt.c
watchdog: add rza_wdt driver
2017-06-05 20:37:17 +02:00
s3c2410_wdt.c
watchdog: s3c2410: Minor code cleanup
2017-06-05 20:38:52 +02:00
sa1100_wdt.c
watchdog: sa11x0/pxa: fix error path of driver initialization
2017-02-24 14:00:23 -08:00
sama5d4_wdt.c
watchdog: sama5d4: fix WDD value to be always set to max
2019-12-05 09:21:32 +01:00
sb_wdog.c
…
sbc60xxwdt.c
watchdog: Fix possible use-after-free in wdt_startup()
2021-07-20 16:16:11 +02:00
sbc7240_wdt.c
…
sbc8360.c
…
sbc_epx_c3.c
…
sbc_fitpc2_wdt.c
…
sbsa_gwdt.c
watchdog: sbsa: use 32-bit read for WCV
2018-03-03 15:52:32 +01:00
sc520_wdt.c
watchdog: sc520_wdt: Fix possible use-after-free in wdt_turnoff()
2021-07-20 16:16:11 +02:00
sc1200wdt.c
watchdog: sc1200: constify pnp_device_id
2017-09-09 21:14:46 +02:00
sch311x_wdt.c
watchdog: sch311x_wdt: Mark expected switch fall-through
2018-04-16 10:22:39 +02:00
scx200_wdt.c
…
shwdt.c
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
sirfsoc_wdt.c
watchdog: sirfsoc: allow setting timeout in devicetree
2018-03-03 17:04:13 +01:00
smsc37b787_wdt.c
…
softdog.c
watchdog: softdog: fire watchdog even if softirqs do not get to run
2017-03-01 06:15:10 -08:00
sp805_wdt.c
watchdog: sp805: fix restart handler
2020-04-23 10:30:12 +02:00
sp5100_tco.c
watchdog: sp5100_tco: Add support for recent FCH versions
2018-01-21 12:56:37 +01:00
sp5100_tco.h
watchdog: sp5100: Fix definition of EFCH_PM_DECODEEN3
2020-10-30 10:38:22 +01:00
sprd_wdt.c
watchdog: sprd: check busy bit before new loading rather than after that
2020-12-30 11:26:03 +01:00
st_lpc_wdt.c
watchdog: add SPDX identifiers for watchdog subsystem
2018-03-24 10:19:40 +01:00
stm32_iwdg.c
watchdog: stm32: add pclk feature for stm32mp1
2018-08-02 15:57:09 +02:00
stmp3xxx_rtc_wdt.c
watchdog: stmp3xxx: Switch to SPDX identifier
2018-08-02 15:57:11 +02:00
sun4v_wdt.c
watchdog: constify watchdog_ops structures
2017-02-24 14:00:23 -08:00
sunxi_wdt.c
watchdog: sunxi: allow setting timeout in devicetree
2018-03-03 17:04:13 +01:00
tangox_wdt.c
headers: separate linux/mod_devicetable.h from linux/platform_device.h
2018-07-07 17:52:26 +02:00
tegra_wdt.c
watchdog: add SPDX identifiers for watchdog subsystem
2018-03-24 10:19:40 +01:00
ts72xx_wdt.c
watchdog: ts72xx_wdt: constify watchdog_ops structure
2017-09-09 20:06:14 +02:00
ts4800_wdt.c
…
twl4030_wdt.c
mfd: twl: Move header file out of I2C realm
2017-09-04 14:41:02 +01:00
txx9wdt.c
watchdog: txx9wdt: Add missing clock (un)prepare calls for CCF
2016-09-23 22:36:32 +02:00
uniphier_wdt.c
watchdog: add SPDX identifiers for watchdog subsystem
2018-03-24 10:19:40 +01:00
ux500_wdt.c
…
via_wdt.c
treewide: Switch DEFINE_TIMER callbacks to struct timer_list *
2017-11-21 15:57:05 -08:00
w83627hf_wdt.c
watchdog: w83627hf_wdt: Support NCT6796D, NCT6797D, NCT6798D
2019-11-24 08:19:43 +01:00
w83877f_wdt.c
watchdog: Fix possible use-after-free by calling del_timer_sync()
2021-07-20 16:16:11 +02:00
w83977f_wdt.c
watchdog: w83977f_wdt: Mark expected switch fall-through
2018-04-16 10:22:39 +02:00
wafer5823wdt.c
watchdog: wafer5823wdt: Mark expected switch fall-through
2018-04-16 10:22:39 +02:00
watchdog_core.c
watchdog: Fix potential dereferencing of null pointer
2020-12-30 11:26:04 +01:00
watchdog_core.h
…
watchdog_dev.c
watchdog: Fix kmemleak in watchdog_cdev_register
2023-03-11 16:31:58 +01:00
watchdog_pretimeout.c
watchdog: pretimeout: add pretimeout_available_governors attribute
2016-10-08 10:27:24 +02:00
watchdog_pretimeout.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
wd501p.h
…
wdat_wdt.c
ACPI: watchdog: Fix gas->access_width usage
2020-03-05 16:42:17 +01:00
wdrtas.c
…
wdt285.c
…
wdt977.c
…
wdt_pci.c
watchdog: wdt_pci: mark expected switch fall-through
2017-12-28 20:45:30 +01:00
wdt.c
Annotate hardware config module parameters in drivers/watchdog/
2017-04-20 12:02:32 +01:00
wm831x_wdt.c
watchdog: add SPDX identifiers for watchdog subsystem
2018-03-24 10:19:40 +01:00
wm8350_wdt.c
watchdog: add SPDX identifiers for watchdog subsystem
2018-03-24 10:19:40 +01:00
xen_wdt.c
watchdog: xen_wdt: remove info message and version number
2017-12-28 20:45:44 +01:00
ziirave_wdt.c
watchdog: ziirave: constify i2c_device_id
2017-09-09 21:16:17 +02:00
zx2967_wdt.c
watchdog: zx2967: explicitly request exclusive reset control
2017-09-09 20:18:43 +02:00