This is a note to let you know that I've just added the patch titled
iio: ad9523: Fix return value for ad952x_store()
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-next 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 also be merged in the next major kernel release during the merge window.
If you have any questions about this process, please let me know.
From 9a5094ca29ea9b1da301b31fd377c0c0c4c23034 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen lars@metafoo.de Date: Fri, 27 Jul 2018 09:42:45 +0300 Subject: iio: ad9523: Fix return value for ad952x_store()
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 --- drivers/iio/frequency/ad9523.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/frequency/ad9523.c b/drivers/iio/frequency/ad9523.c index 37504739c277..059b2fda8cbd 100644 --- a/drivers/iio/frequency/ad9523.c +++ b/drivers/iio/frequency/ad9523.c @@ -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) {