diff options
| author | Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> | 2017-03-29 16:23:35 -0700 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2017-04-02 11:26:14 +0100 |
| commit | 862d1d89ad9e5b117f1fb2a472cef6fc92c0007a (patch) | |
| tree | 7bd3c10277ecd05b90b96cd6a237a4220c453e68 | |
| parent | 7fd6592d1287046f61bfd3cda3c03cd35be490f7 (diff) | |
| download | linux-862d1d89ad9e5b117f1fb2a472cef6fc92c0007a.tar.bz2 | |
iio: accel: hid-sensor-accel-3d: Fix duplicate scan index error
When both accel_3d and gravity sensor are present, iio_device_register()
fails with "Duplicate scan index" error.
The reason for this is setting of indio_dev->num_channels based on
accel_3d channel for both gravity and accel-3d sensor. But number of
channels are not same, so for gravity it is pointing to some invalid
memory and getting scan_index to compare which may match.
To fix this issue, set the indio_dev->num_channels correctly based on
the sensor type.
Fixes: 0e377f3b9ae9 ('iio: Add gravity sensor support')
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| -rw-r--r-- | drivers/iio/accel/hid-sensor-accel-3d.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iio/accel/hid-sensor-accel-3d.c b/drivers/iio/accel/hid-sensor-accel-3d.c index ca5759c0c318..43a6cb078193 100644 --- a/drivers/iio/accel/hid-sensor-accel-3d.c +++ b/drivers/iio/accel/hid-sensor-accel-3d.c @@ -370,10 +370,12 @@ static int hid_accel_3d_probe(struct platform_device *pdev) name = "accel_3d"; channel_spec = accel_3d_channels; channel_size = sizeof(accel_3d_channels); + indio_dev->num_channels = ARRAY_SIZE(accel_3d_channels); } else { name = "gravity"; channel_spec = gravity_channels; channel_size = sizeof(gravity_channels); + indio_dev->num_channels = ARRAY_SIZE(gravity_channels); } ret = hid_sensor_parse_common_attributes(hsdev, hsdev->usage, &accel_state->common_attributes); @@ -395,7 +397,6 @@ static int hid_accel_3d_probe(struct platform_device *pdev) goto error_free_dev_mem; } - indio_dev->num_channels = ARRAY_SIZE(accel_3d_channels); indio_dev->dev.parent = &pdev->dev; indio_dev->info = &accel_3d_info; indio_dev->name = name; |