diff options
| author | Colin Ian King <colin.king@canonical.com> | 2018-10-16 19:14:18 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2018-10-21 17:43:11 +0300 |
| commit | d42282db6c41cd1896090c3bc95fc9cfd7268189 (patch) | |
| tree | 91df9df6da2666fa0c580218f337b9149b6c1c45 /drivers/iio/adc/ina2xx-adc.c | |
| parent | e480490c90956f8e46ba666b49bc56000083bbfe (diff) | |
| download | linux-d42282db6c41cd1896090c3bc95fc9cfd7268189.tar.xz | |
iio: adc: ina2xx: add in early -EINVAL returns in case statements
Static analysis with CoverityScan is throwing warnings that specific
case statements are missing breaks. Rather than adding breaks, add
return -EINVAL to the specific case statements to clarify the
error return paths. Fix also saves 50 bytes.
Before:
text data bss dec hex filename
21418 4936 128 26482 6772 drivers/iio/adc/ina2xx-adc.o
After:
dec hex filename
21370 4936 128 26434 6742 drivers/iio/adc/ina2xx-adc.o
(gcc 8.2, x86-64)
Detected by CoverityScan, CID#1462408 ("Missing break in switch")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/adc/ina2xx-adc.c')
| -rw-r--r-- | drivers/iio/adc/ina2xx-adc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/iio/adc/ina2xx-adc.c b/drivers/iio/adc/ina2xx-adc.c index d1239624187d..bdd7cba6f6b0 100644 --- a/drivers/iio/adc/ina2xx-adc.c +++ b/drivers/iio/adc/ina2xx-adc.c @@ -250,6 +250,7 @@ static int ina2xx_read_raw(struct iio_dev *indio_dev, *val2 = chip->shunt_resistor_uohm; return IIO_VAL_FRACTIONAL; } + return -EINVAL; case IIO_CHAN_INFO_HARDWAREGAIN: switch (chan->address) { @@ -262,6 +263,7 @@ static int ina2xx_read_raw(struct iio_dev *indio_dev, *val = chip->range_vbus == 32 ? 1 : 2; return IIO_VAL_INT; } + return -EINVAL; } return -EINVAL; |