iio: buffer: Make length attribute read only for buffers without set_length

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If a buffer implementation does not implement the set_length() callback the
length will be static and can not be changed by userspace. Mark the length
attribute as a read only property in this case so userspace is aware of this
rather than just silently accepting any length value.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

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Lars-Peter Clausen 2014-11-26 18:55:16 +01:00 • committed by Jonathan Cameron

parent 08e7e0adaa

commit 8d92db2827

1 changed files with 7 additions and 3 deletions

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drivers/iio/industrialio-buffer.c

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