linux-uconsole/drivers/iio/common
Nathan Chancellor 36a59a0368 iio: common: ssp_sensors: Initialize calculated_time in ssp_common_process_data
[ Upstream commit 6f9ca1d3eb ]

When building with -Wsometimes-uninitialized, Clang warns:

drivers/iio/common/ssp_sensors/ssp_iio.c:95:6: warning: variable
'calculated_time' is used uninitialized whenever 'if' condition is false
[-Wsometimes-uninitialized]

While it isn't wrong, this will never be a problem because
iio_push_to_buffers_with_timestamp only uses calculated_time
on the same condition that it is assigned (when scan_timestamp
is not zero). While iio_push_to_buffers_with_timestamp is marked
as inline, Clang does inlining in the optimization stage, which
happens after the semantic analysis phase (plus inline is merely
a hint to the compiler).

Fix this by just zero initializing calculated_time.

Link: https://github.com/ClangBuiltLinux/linux/issues/394
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-05-31 06:46:25 -07:00
..
cros_ec_sensors iio: cros_ec: Fix the maths for gyro scale calculation 2019-04-27 09:36:34 +02:00
hid-sensors Staging/IIO patches for 4.18-rc1 2018-06-09 10:32:39 -07:00
ms_sensors
ssp_sensors iio: common: ssp_sensors: Initialize calculated_time in ssp_common_process_data 2019-05-31 06:46:25 -07:00
st_sensors iio: change strncpy+truncation to strlcpy 2018-07-15 11:38:06 +01:00
Kconfig
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00