diff options
| author | Li Hua | 2022-11-16 10:07:06 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2023-03-11 13:55:23 +0100 |
| commit | ce64f72e988b0995e502ae8134d3954b669a273b (patch) | |
| tree | b5dfb6334ddcf9487c73bc393c072b004bb7a107 /mm/swap_cgroup.c | |
| parent | ac099d94e0480c937aa9172ab64074981ca1a4d3 (diff) | |
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>
Diffstat (limited to 'mm/swap_cgroup.c')
0 files changed, 0 insertions, 0 deletions