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| author | Stefan Wahren <stefan.wahren@i2se.com> | 2015-01-01 19:13:24 +0100 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2015-01-05 19:59:50 +0100 |
| commit | 1f202725b70c3d6dc736904a0d1b77a5faed6690 (patch) | |
| tree | 2ed4ac6cdaa8bdbd34c5f5da25a9021e66a2fbba /drivers/iio | |
| parent | iio: driver for Semtech SX9500 proximity solution (diff) | |
| download | linux-1f202725b70c3d6dc736904a0d1b77a5faed6690.tar.xz linux-1f202725b70c3d6dc736904a0d1b77a5faed6690.zip | |
iio: inkern: add out of range error message
If the DT contains an invalid channel specifier then the probe of
iio_hwmon fails with the following message:
iio_hwmon: probe of iio_hwmon failed with error -22
So it's better to print out the relevant channel specifier in
error case to locate the problem.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/inkern.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c index 21655fd1465c..2800b80ea990 100644 --- a/drivers/iio/inkern.c +++ b/drivers/iio/inkern.c @@ -116,8 +116,11 @@ static int __of_iio_simple_xlate(struct iio_dev *indio_dev, if (!iiospec->args_count) return 0; - if (iiospec->args[0] >= indio_dev->num_channels) + if (iiospec->args[0] >= indio_dev->num_channels) { + dev_err(&indio_dev->dev, "invalid channel index %u\n", + iiospec->args[0]); return -EINVAL; + } return iiospec->args[0]; } |