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 170ac98..24c348d 100644 (file)
--- 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")) {