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authorLars-Peter Clausen <lars@metafoo.de>2018-07-27 09:42:45 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-09-09 20:01:22 +0200
commitd4e5a9eda9174c3c68d6ef05264d5746bbc29569 (patch)
treee2d68f64d54eaff3abadca5eafc8d5fa7835bd10
parent4e834c730df6dc887d1a7c5ed607aaa7aa991fb5 (diff)
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.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/frequency/ad9523.c b/drivers/iio/frequency/ad9523.c
index cb45fa314a92..1642b55f70da 100644
--- a/drivers/iio/frequency/ad9523.c
+++ b/drivers/iio/frequency/ad9523.c
@@ -508,7 +508,7 @@ 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) {