This is a note to let you know that I've just added the patch titled
iio: fix config watermark initial value
to my staging git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
in the staging-linus branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.
If you have any questions about this process, please let me know.
>From 1bef2c1d4e4fd92bdf8219b13ba97ba861618254 Mon Sep 17 00:00:00 2001
From: Irina Tirdea <irina.tirdea@xxxxxxxxx>
Date: Thu, 24 Mar 2016 11:09:45 +0200
Subject: iio: fix config watermark initial value
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@xxxxxxxxx>
Fixes: f0566c0c405d ("iio: Set device watermark based on watermark of all
attached buffers")
Cc: <Stable@xxxxxxxxxxxxxxx>
Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxxx>
---
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 b976332d45d3..90462fcf5436 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
--
2.8.0
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