staging: iio: sca3000 fix sca3000_[show,store]_ring_bpse

Signed-off-by: NManuel Stahl <manuel.stahl@iis.fraunhofer.de>
Acked-by: NJonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/iio/accel/sca3000_ring.c

@@ -126,8 +126,8 @@ static ssize_t sca3000_show_ring_bpse(struct device *dev,
 {
 	int len = 0, ret;
 	u8 *rx;
-	struct iio_ring_buffer *r = dev_get_drvdata(dev);
-	struct sca3000_state *st = r->indio_dev->dev_data;
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
+	struct sca3000_state *st = indio_dev->dev_data;
 
 	mutex_lock(&st->lock);
 	ret = sca3000_read_data(st, SCA3000_REG_ADDR_MODE, &rx, 1);
@@ -153,8 +153,8 @@ static ssize_t sca3000_store_ring_bpse(struct device *dev,
 				      const char *buf,
 				      size_t len)
 {
-	struct iio_ring_buffer *r = dev_get_drvdata(dev);
-	struct sca3000_state *st = r->indio_dev->dev_data;
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
+	struct sca3000_state *st = indio_dev->dev_data;
 	int ret;
 	u8 *rx;
 	long val;