diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index 357c64905773..9371bea21ba1 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -1834,6 +1834,7 @@ static size_t vop_crtc_bandwidth(struct drm_crtc *crtc,
 	sort(pbandwidth, cnt, sizeof(pbandwidth[0]), vop_bandwidth_cmp, NULL);
 
 	bandwidth = vop_calc_max_bandwidth(pbandwidth, 0, cnt, vdisplay);
+	kfree(pbandwidth);
 	/*
 	 * bandwidth(MB/s)
 	 *    = line_bandwidth / line_time