The buffer needs to be DMA-safe when used with spi_read()
Signed-off-by: Marcus Folkesson <marcus.folkesson@xxxxxxxxx>
---
drivers/iio/adc/max1027.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/adc/max1027.c b/drivers/iio/adc/max1027.c
index 712fbd2b1f16..ff1f1f15a873 100644
--- a/drivers/iio/adc/max1027.c
+++ b/drivers/iio/adc/max1027.c
@@ -435,7 +435,7 @@ static int max1027_probe(struct spi_device *spi)
st->buffer = devm_kmalloc(&indio_dev->dev,
indio_dev->num_channels * 2,
- GFP_KERNEL);
+ GFP_KERNEL | GFP_DMA);
if (st->buffer == NULL) {
dev_err(&indio_dev->dev, "Can't allocate buffer\n");
return -ENOMEM;
--
2.11.0.rc2
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