From c5b974bee9d2ceae4c441ae5a01e498c2674e100 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Sat, 7 Jul 2018 12:44:01 -0500
Subject: [PATCH] iio: sca3000: Fix missing return in switch
Git-commit: c5b974bee9d2ceae4c441ae5a01e498c2674e100
Patch-mainline: v4.19-rc1
References: bsc#1051510

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>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/iio/accel/sca3000.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/accel/sca3000.c b/drivers/iio/accel/sca3000.c
index 4dceb75e3586..4964561595f5 100644
--- a/drivers/iio/accel/sca3000.c
+++ b/drivers/iio/accel/sca3000.c
@@ -797,6 +797,7 @@ static int sca3000_write_raw(struct iio_dev *indio_dev,
 		mutex_lock(&st->lock);
 		ret = sca3000_write_3db_freq(st, val);
 		mutex_unlock(&st->lock);
+		return ret;
 	default:
 		return -EINVAL;
 	}
-- 
2.18.0