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iio: buffer: initialize masklength accumulator to 0

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Since masklength is marked as [INTERN], no drivers should assign it and
the value will always be 0. Therefore, the local ml accumulator variable
in iio_buffers_alloc_sysfs_and_mask() will always start out as 0.

This changes the code to explicitly set ml to 0 to make it clear that
drivers should not be trying to override the masklength field.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://lore.kernel.org/r/20240425-b4-iio-masklength-cleanup-v1-3-d3d16318274d@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
David Lechner 2024-04-25 10:03:29 -05:00 committed by Jonathan Cameron
parent 75616d2e3c
commit 79df437b56
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/industrialio-buffer.c
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@ -1744,7 +1744,7 @@ int iio_buffers_alloc_sysfs_and_mask(struct iio_dev *indio_dev)
channels = indio_dev->channels;
if (channels) {
int ml = indio_dev->masklength;
int ml = 0;
for (i = 0; i < indio_dev->num_channels; i++)
ml = max(ml, channels[i].scan_index + 1);