Commit cb6fbfa1 authored Oct 15, 2013 by Lars-Peter Clausen Committed by Jonathan Cameron Oct 15, 2013

iio:kfifo: Set update_needed to false after allocating a new buffer



update_needed is used to decide whether the kfifo buffer needs to be
re-allocated. It is set to true whenever the size of the buffer is changed. It
is never set to false though, causing the buffer to always be re-allocated.
Setting update_needed to false after the new buffer has been allocated fixes the
problem.

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

parent 5b78e513

drivers/iio/kfifo_buf.c

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -38,6 +38,7 @@ static int iio_request_update_kfifo(struct iio_buffer *r)
	kfifo_free(&buf->kf);		kfifo_free(&buf->kf);
	ret = __iio_allocate_kfifo(buf, buf->buffer.bytes_per_datum,		ret = __iio_allocate_kfifo(buf, buf->buffer.bytes_per_datum,
	buf->buffer.length);		buf->buffer.length);
			buf->update_needed = false;
	} else {		} else {
	kfifo_reset_out(&buf->kf);		kfifo_reset_out(&buf->kf);
	}		}