media: imx: imx7-media-csi: Fail on invalid type in VIDIOC_G_SELECTION

This device only supports video capture, so bail out if invalid
selection type is passed.
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

drivers/media/platform/nxp/imx7-media-csi.c

@@ -1214,6 +1214,9 @@ static int imx7_csi_video_g_selection(struct file *file, void *fh,
 {
 	struct imx7_csi *csi = video_drvdata(file);
 
+	if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
 	switch (s->target) {
 	case V4L2_SEL_TGT_COMPOSE:
 	case V4L2_SEL_TGT_COMPOSE_DEFAULT: