diff --git a/drivers/media/platform/rockchip/isp/dev.c b/drivers/media/platform/rockchip/isp/dev.c
index f4b543376ba6..827ea956aedf 100644
--- a/drivers/media/platform/rockchip/isp/dev.c
+++ b/drivers/media/platform/rockchip/isp/dev.c
@@ -394,6 +394,8 @@ static int _set_pipeline_default_fmt(struct rkisp_device *dev)
 	struct v4l2_subdev_selection sel;
 	u32 i, width, height, code;
 
+	memset(&sel, 0, sizeof(sel));
+	memset(&fmt, 0, sizeof(fmt));
 	isp = &dev->isp_sdev.sd;
 
 	if (dev->active_sensor)
diff --git a/drivers/media/platform/rockchip/isp/rkisp.c b/drivers/media/platform/rockchip/isp/rkisp.c
index b4a23950c8dc..09166a267990 100644
--- a/drivers/media/platform/rockchip/isp/rkisp.c
+++ b/drivers/media/platform/rockchip/isp/rkisp.c
@@ -198,6 +198,7 @@ int rkisp_align_sensor_resolution(struct rkisp_device *dev,
 	if (!crop)
 		return -EINVAL;
 
+	memset(&sel, 0, sizeof(sel));
 	switch (dev->isp_ver) {
 	case ISP_V12:
 		w = clamp_t(u32, src_w,