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staging: iio: sca3000 fix bug due to scan_element directory move. 

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@analog.com>
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jonathan Cameron 2010-10-07 13:10:20 +01:00 committed by Greg Kroah-Hartman
parent 0986452eb4
commit 7aa3baeb97
1 changed files with 4 additions and 2 deletions
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6
drivers/staging/iio/accel/sca3000_ring.c
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@ -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;