staging:iio:ad7746: Mark transfer buffer as __be32

Fixes the following warnings from sparse:
	drivers/staging/iio/cdc/ad7746.c:599:25: warning: cast to restricted __be32
	drivers/staging/iio/cdc/ad7746.c:599:25: warning: cast to restricted __be32
	drivers/staging/iio/cdc/ad7746.c:599:25: warning: cast to restricted __be32
	drivers/staging/iio/cdc/ad7746.c:599:25: warning: cast to restricted __be32
	drivers/staging/iio/cdc/ad7746.c:599:25: warning: cast to restricted __be32
	drivers/staging/iio/cdc/ad7746.c:599:25: warning: cast to restricted __be32

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/staging/iio/cdc/ad7746.c b/drivers/staging/iio/cdc/ad7746.c
index 862d68d99630..01e15e2f3f50 100644
--- a/drivers/staging/iio/cdc/ad7746.c
+++ b/drivers/staging/iio/cdc/ad7746.c
@@ -567,7 +567,7 @@ static int ad7746_read_raw(struct iio_dev *indio_dev,
         u8 regval, reg;
 
         union {
-                u32 d32;
+                __be32 d32;
                 u8 d8[4];
         } data;