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* [PATCH 1/1] iio: fix config watermark initial value
@ 2016-03-24  9:09 Irina Tirdea
  2016-03-24  9:23 ` Lars-Peter Clausen
  0 siblings, 1 reply; 7+ messages in thread
From: Irina Tirdea @ 2016-03-24  9:09 UTC (permalink / raw)
  To: Jonathan Cameron, linux-iio
  Cc: linux-kernel, Hartmut Knaack, Lars-Peter Clausen, Peter Meerwald,
	Octavian Purdila, Irina Tirdea

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
buffers.

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
---
 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
-- 
1.9.1


^ permalink raw reply related	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2016-06-19 19:46 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-03-24  9:09 [PATCH 1/1] iio: fix config watermark initial value Irina Tirdea
2016-03-24  9:23 ` Lars-Peter Clausen
2016-03-28 10:02   ` Jonathan Cameron
2016-06-16 11:56     ` Daniel Baluta
2016-06-16 16:16       ` Jonathan Cameron
2016-06-16 16:19         ` Lars-Peter Clausen
2016-06-19 19:46           ` Jonathan Cameron

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