[PATCH] iio: inkern: fix a static checker error

[Peter Rosin]

Avoid this smatch error:
drivers/iio/inkern.c:751 iio_read_avail_channel_raw() error: double unlock 
'mutex:&chan->indio_dev->info_exist_lock'

Fixes: 00c5f80c2fad ("iio: inkern: add helpers to query available values from 
channels")
Signed-off-by: Peter Rosin <p...@axentia.se>
---
 drivers/iio/inkern.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c
index 7a13535dc3e9..a3941bade6a7 100644
--- a/drivers/iio/inkern.c
+++ b/drivers/iio/inkern.c
@@ -750,11 +750,9 @@ int iio_read_avail_channel_raw(struct iio_channel *chan,
 err_unlock:
        mutex_unlock(&chan->indio_dev->info_exist_lock);
 
-       if (ret >= 0 && type != IIO_VAL_INT) {
+       if (ret >= 0 && type != IIO_VAL_INT)
                /* raw values are assumed to be IIO_VAL_INT */
                ret = -EINVAL;
-               goto err_unlock;
-       }
 
        return ret;
 }
-- 
2.1.4