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| author | Lars-Peter Clausen <lars@metafoo.de> | 2018-07-27 09:42:45 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-09 20:07:55 +0200 |
| commit | 76eb62bdb1119b400668b0e63cce3edc1678dea6 (patch) | |
| tree | 5249730530e2468386e9717dd04454b7b225e9c7 | |
| parent | a3442d68f5af35117f20f595c530ca6c26992f22 (diff) | |
| download | linux-stable-76eb62bdb1119b400668b0e63cce3edc1678dea6.tar.gz linux-stable-76eb62bdb1119b400668b0e63cce3edc1678dea6.tar.bz2 linux-stable-76eb62bdb1119b400668b0e63cce3edc1678dea6.zip | |
iio: ad9523: Fix return value for ad952x_store()
commit 9a5094ca29ea9b1da301b31fd377c0c0c4c23034 upstream.
A sysfs write callback function needs to either return the number of
consumed characters or an error.
The ad952x_store() function currently returns 0 if the input value was "0",
this will signal that no characters have been consumed and the function
will be called repeatedly in a loop indefinitely. Fix this by returning
number of supplied characters to indicate that the whole input string has
been consumed.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Fixes: cd1678f96329 ("iio: frequency: New driver for AD9523 SPI Low Jitter Clock Generator")
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/iio/frequency/ad9523.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/frequency/ad9523.c b/drivers/iio/frequency/ad9523.c index abc21d913ef0..4cffd8fc5cae 100644 --- a/drivers/iio/frequency/ad9523.c +++ b/drivers/iio/frequency/ad9523.c @@ -507,7 +507,7 @@ static ssize_t ad9523_store(struct device *dev, return ret; if (!state) - return 0; + return len; mutex_lock(&indio_dev->mlock); switch ((u32)this_attr->address) { |