iio: querying buffer scan_mask should return 0/1

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commit 2076a20fc1 upstream.

Ensure that querying the IIO buffer scan_mask returns a value of
0 or 1. Currently querying the scan mask has the value returned
by test_bit(), which returns either true or false. For some
architectures test_bit() may return -1 for true, which will appear
to return an error when returning from iio_scan_mask_query().

Additionally, it's important for the sysfs interface to consistently
return the same thing when querying the scan_mask.

Signed-off-by: Alec Berg <alecaberg@chromium.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Alec Berg 2014-03-19 18:50:00 +00:00 • committed by Greg Kroah-Hartman

parent 56c5ac2015

commit 92c5fbd003

1 changed files with 4 additions and 2 deletions

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drivers/iio/industrialio-buffer.c

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