4.18-stable review patch. If anyone has any objections, please let me know.
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From: Gustavo A. R. Silva gustavo@embeddedor.com
commit c5b974bee9d2ceae4c441ae5a01e498c2674e100 upstream.
The IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY case is missing a return and will fall through to the default case and errorenously return -EINVAL.
Fix this by adding in missing *return ret*.
Fixes: 626f971b5b07 ("staging:iio:accel:sca3000 Add write support to the low pass filter control") Reported-by: Jonathan Cameron jic23@kernel.org Signed-off-by: Gustavo A. R. Silva gustavo@embeddedor.com Cc: Stable@vger.kernel.org Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/iio/accel/sca3000.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/iio/accel/sca3000.c +++ b/drivers/iio/accel/sca3000.c @@ -797,6 +797,7 @@ static int sca3000_write_raw(struct iio_ mutex_lock(&st->lock); ret = sca3000_write_3db_freq(st, val); mutex_unlock(&st->lock); + return ret; default: return -EINVAL; }