media: atomisp: remove redundant initialization of variable ret

The variable ret is being initialized with a value that is never read,
it is being updated later on. The assignment is redundant and can be
removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/staging/media/atomisp/i2c/ov5693/atomisp-ov5693.c

@@ -932,7 +932,7 @@ static int ov5693_q_exposure(struct v4l2_subdev *sd, s32 *value)
 static int ad5823_t_focus_vcm(struct v4l2_subdev *sd, u16 val)
 {
 	struct i2c_client *client = v4l2_get_subdevdata(sd);
-	int ret = -EINVAL;
+	int ret;
 	u8 vcm_code;
 
 	ret = ad5823_i2c_read(client, AD5823_REG_VCM_CODE_MSB, &vcm_code);