[media] v4l: use i2c_smbus_read_word_swapped

Function ensures that error codes don't get mangled.
Dependant on:
which is working it's way through the i2c tree.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/media/video/mt9v022.c b/drivers/media/video/mt9v022.c
index b6a29f7de82c..c5c67ec8fd78 100644
--- a/drivers/media/video/mt9v022.c
+++ b/drivers/media/video/mt9v022.c
@@ -129,14 +129,13 @@ static struct mt9v022 *to_mt9v022(const struct i2c_client *client)
 
 static int reg_read(struct i2c_client *client, const u8 reg)
 {
-        s32 data = i2c_smbus_read_word_data(client, reg);
-        return data < 0 ? data : swab16(data);
+        return i2c_smbus_read_word_swapped(client, reg);
 }
 
 static int reg_write(struct i2c_client *client, const u8 reg,
                      const u16 data)
 {
-        return i2c_smbus_write_word_data(client, reg, swab16(data));
+        return i2c_smbus_write_word_swapped(client, reg, data);
 }
 
 static int reg_set(struct i2c_client *client, const u8 reg,