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iio: ad9523: Fix return value for ad952x_store()

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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 <[email protected]>
Signed-off-by: Alexandru Ardelean <[email protected]>
Fixes: cd1678f963 ("iio: frequency: New driver for AD9523 SPI Low Jitter Clock Generator")
Cc: <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>
This commit is contained in:
Lars-Peter Clausen 2018-07-27 09:42:45 +03:00 • committed by Jonathan Cameron
commit 9a5094ca29
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/frequency/ad9523.c
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@ -518,7 +518,7 @@ static ssize_t ad9523_store(struct device *dev,
return ret;
if (!state)
return 0;
return len;
mutex_lock(&st->lock);
switch ((u32)this_attr->address) {