The device found passed to the attr functions is that of the ring buffer, not the the iio_dev so we need to bounce through one more hop to get the right address. Reported-by: Michael Hennerich <michael.hennerich@xxxxxxxxxx> Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxx> --- drivers/staging/iio/accel/sca3000_ring.c | 6 ++++-- 1 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/staging/iio/accel/sca3000_ring.c b/drivers/staging/iio/accel/sca3000_ring.c index 8186d2b..c872fdd 100644 --- a/drivers/staging/iio/accel/sca3000_ring.c +++ b/drivers/staging/iio/accel/sca3000_ring.c @@ -138,7 +138,8 @@ static ssize_t sca3000_show_ring_bpse(struct device *dev, { int len = 0, ret; u8 *rx; - struct iio_dev *indio_dev = dev_get_drvdata(dev); + struct iio_ring_buffer *ring = dev_get_drvdata(dev); + struct iio_dev *indio_dev = ring->indio_dev; struct sca3000_state *st = indio_dev->dev_data; mutex_lock(&st->lock); @@ -168,7 +169,8 @@ static ssize_t sca3000_store_ring_bpse(struct device *dev, const char *buf, size_t len) { - struct iio_dev *indio_dev = dev_get_drvdata(dev); + struct iio_ring_buffer *ring = dev_get_drvdata(dev); + struct iio_dev *indio_dev = ring->indio_dev; struct sca3000_state *st = indio_dev->dev_data; int ret; u8 *rx; -- 1.7.2.2 -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html