diff options
| author | Nathan Chancellor <natechancellor@gmail.com> | 2019-03-07 14:45:46 -0700 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2019-04-04 20:19:56 +0100 |
| commit | 6f9ca1d3eb74b81f811a87002de2d51640d135b1 (patch) | |
| tree | 99d32dd3b4a103f225546352491c0d72c19b4685 /drivers/iio/common/ssp_sensors | |
| parent | 11362b7a43bac15607e26d501d6095235b38567b (diff) | |
iio: common: ssp_sensors: Initialize calculated_time in ssp_common_process_data
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>
Diffstat (limited to 'drivers/iio/common/ssp_sensors')
| -rw-r--r-- | drivers/iio/common/ssp_sensors/ssp_iio.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/common/ssp_sensors/ssp_iio.c b/drivers/iio/common/ssp_sensors/ssp_iio.c index 645f2e3975db..e38f704d88b7 100644 --- a/drivers/iio/common/ssp_sensors/ssp_iio.c +++ b/drivers/iio/common/ssp_sensors/ssp_iio.c @@ -81,7 +81,7 @@ int ssp_common_process_data(struct iio_dev *indio_dev, void *buf, unsigned int len, int64_t timestamp) { __le32 time; - int64_t calculated_time; + int64_t calculated_time = 0; struct ssp_sensor_data *spd = iio_priv(indio_dev); if (indio_dev->scan_bytes == 0) |