From: Phil Turnbull <phil.turnbull@oracle.com>
Date: Thu, 21 Jul 2016 15:23:13 +0000 (-0400)
Subject: staging: iio: ad5933: Return correct value for AD5933_OUT_RANGE.
X-Git-Tag: v4.8-rc5~8^2^2~20
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=776b645315d372e06e46167194605d308aa1a790;p=karo-tx-linux.git

staging: iio: ad5933: Return correct value for AD5933_OUT_RANGE.

The 'break' statement after calling ad5933_cmd only breaks out of the
'for' loop, which then unconditionally sets the return value to -EINVAL.
Move the initialisation of 'ret' so we return the correct value.

Signed-off-by: Phil Turnbull <phil.turnbull@oracle.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---

diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c
index 170ac980abcb..24c348d2f5bb 100644
--- a/drivers/staging/iio/impedance-analyzer/ad5933.c
+++ b/drivers/staging/iio/impedance-analyzer/ad5933.c
@@ -419,6 +419,7 @@ static ssize_t ad5933_store(struct device *dev,
 	mutex_lock(&indio_dev->mlock);
 	switch ((u32)this_attr->address) {
 	case AD5933_OUT_RANGE:
+		ret = -EINVAL;
 		for (i = 0; i < 4; i++)
 			if (val == st->range_avail[i]) {
 				st->ctrl_hb &= ~AD5933_CTRL_RANGE(0x3);
@@ -426,7 +427,6 @@ static ssize_t ad5933_store(struct device *dev,
 				ret = ad5933_cmd(st, 0);
 				break;
 			}
-		ret = -EINVAL;
 		break;
 	case AD5933_IN_PGA_GAIN:
 		if (sysfs_streq(buf, "1")) {