media: ov5693: fix returnvar.cocci warnings

drivers/media/i2c/ov5693.c:953:5-8: Unneeded variable: "ret". Return "0" on line 985

 Remove unneeded variable used to store return value.

Generated by: scripts/coccinelle/misc/returnvar.cocci

[Sakari Ailus: Improved subject]

CC: Daniel Scally <djrscally@gmail.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/i2c/ov5693.c

@@ -950,7 +950,6 @@ static int ov5693_set_fmt(struct v4l2_subdev *sd,
 	unsigned int width, height;
 	unsigned int hblank;
 	int exposure_max;
-	int ret = 0;
 
 	crop = __ov5693_get_pad_crop(ov5693, state, format->pad, format->which);
 
@@ -982,7 +981,7 @@ static int ov5693_set_fmt(struct v4l2_subdev *sd,
 	format->format = *fmt;
 
 	if (format->which == V4L2_SUBDEV_FORMAT_TRY)
-		return ret;
+		return 0;
 
 	mutex_lock(&ov5693->lock);
 
@@ -1012,7 +1011,7 @@ static int ov5693_set_fmt(struct v4l2_subdev *sd,
 				     exposure_max));
 
 	mutex_unlock(&ov5693->lock);
-	return ret;
+	return 0;
 }
 
 static int ov5693_get_selection(struct v4l2_subdev *sd,