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authorIrina Tirdea <irina.tirdea@intel.com>2016-03-24 10:09:45 +0100
committerJonathan Cameron <jic23@kernel.org>2016-03-28 12:00:38 +0200
commit1bef2c1d4e4fd92bdf8219b13ba97ba861618254 (patch)
treeee078e95414d0ba2448085213c05972aabd83f92 /drivers/iio
parentiio: health: max30100: correct FIFO check condition (diff)
downloadlinux-1bef2c1d4e4fd92bdf8219b13ba97ba861618254.tar.xz
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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@intel.com> Fixes: f0566c0c405d ("iio: Set device watermark based on watermark of all attached buffers") Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/industrialio-buffer.c1
1 files changed, 1 insertions, 0 deletions
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