iio: core: constitfy available_scan_mask

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The core must not modify available_scan_mask, because it causes problems
with drivers where multiple instances of the driver share the same mask set.
So make this explicit by marking available scan masks as const.

The max1363 driver needs some minor adjustment to accommodate this change.
Pull scan mask allocation into a separate function.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Michael Hennerich 2012-02-22 13:16:49 +01:00 • committed by Greg Kroah-Hartman

parent 004d81339a

commit cd4361c7e2

3 changed files with 29 additions and 17 deletions

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36

drivers/staging/iio/adc/max1363_core.c

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4

drivers/staging/iio/iio.h

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6

drivers/staging/iio/industrialio-buffer.c

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