iio:buffer: Simplify iio_buffer_is_active()
authorLars-Peter Clausen <lars@metafoo.de>
Sun, 15 Sep 2013 15:31:00 +0000 (16:31 +0100)
committerJonathan Cameron <jic23@kernel.org>
Sun, 15 Sep 2013 16:35:31 +0000 (17:35 +0100)
commit705ee2c98a37130fd0aa914dc55b74a9174a6ff0
tree995c7b810abd3915aef7f6a53b52b7364f117df1
parenta646fbf0fd11256c59ea6233eb243516086dbf15
iio:buffer: Simplify iio_buffer_is_active()

We can skip having to loop through all the device's buffers to see if a certain
buffer is active, if we let the buffer's list head point to itself when the
buffer is inactive.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
drivers/iio/industrialio-buffer.c