diff options
| author | Fugang Duan <b38611@freescale.com> | 2015-07-16 09:49:09 +0300 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2015-07-19 15:35:26 +0300 |
| commit | bf604a4c44a91cc2ceb60d4643a091b6b32cc999 (patch) | |
| tree | 66b4704167a01f12580c62a5d2dde8777d67bccb /drivers | |
| parent | c68a67b7adeec240bd79780635dc0ce74d0cb61a (diff) | |
| download | linux-bf604a4c44a91cc2ceb60d4643a091b6b32cc999.tar.xz | |
iio: adc: vf610: fix the adc register read fail issue
Read the register only when the adc register address is 4 byte aligned.
(rather than the other way around).
Signed-off-by: Haibo Chen <haibo.chen@freescale.com>
Signed-off-by: Fugang Duan <B38611@freescale.com>
Cc: <Stable.vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iio/adc/vf610_adc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/adc/vf610_adc.c b/drivers/iio/adc/vf610_adc.c index 480f335a0f9f..819632bf1fda 100644 --- a/drivers/iio/adc/vf610_adc.c +++ b/drivers/iio/adc/vf610_adc.c @@ -635,7 +635,7 @@ static int vf610_adc_reg_access(struct iio_dev *indio_dev, struct vf610_adc *info = iio_priv(indio_dev); if ((readval == NULL) || - (!(reg % 4) || (reg > VF610_REG_ADC_PCTL))) + ((reg % 4) || (reg > VF610_REG_ADC_PCTL))) return -EINVAL; *readval = readl(info->regs + reg); |