Staging: iio/dac/ad5360.c: signedness bug in ad5360_read_raw()

ad5360_get_channel_vref() returns an int and scale_uv should be the
same.  Making it unsigned here breaks the error handling.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/iio/dac/ad5360.c b/drivers/staging/iio/dac/ad5360.c
index c5bf582..012d714 100644 (file)
--- a/drivers/staging/iio/dac/ad5360.c
+++ b/drivers/staging/iio/dac/ad5360.c
@@ -371,8 +371,8 @@ static int ad5360_read_raw(struct iio_dev *indio_dev,
                           long m)
 {
        struct ad5360_state *st = iio_priv(indio_dev);
-       unsigned long scale_uv;
        unsigned int ofs_index;
+       int scale_uv;
        int ret;
 
        switch (m) {