[PATCH 1/1] iio: fix config watermark initial value

From: Irina Tirdea
Date: Thu Mar 24 2016 - 05:10:01 EST

config structure is set to 0 when updating the buffers, so by
default config->watermark will be 0. When computing the minimum
between config->watermark and the buffer->watermark or
insert_buffer-watermark, this will always be 0 regardless of the
value set by the user for the buffer.

Set as initial value for config->watermark the maximum allowed
value so that the minimum value will always be set from one of the

Signed-off-by: Irina Tirdea <irina.tirdea@xxxxxxxxx>
drivers/iio/industrialio-buffer.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index b976332..90462fc 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -653,6 +653,7 @@ static int iio_verify_update(struct iio_dev *indio_dev,
unsigned int modes;

memset(config, 0, sizeof(*config));
+ config->watermark = ~0;

* If there is just one buffer and we are removing it there is nothing