[PATCH 1/1] iio: adc: vf610: fix the adc register read fail issue

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Read the register only when the adc register address is 4 byte aligned.

Signed-off-by: Haibo Chen <haibo.chen@xxxxxxxxxxxxx>
Signed-off-by: Fugang Duan <B38611@xxxxxxxxxxxxx>
---
 drivers/iio/adc/vf610_adc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/vf610_adc.c b/drivers/iio/adc/vf610_adc.c
index 480f335..819632b 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);
-- 
1.9.1

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