diff --git a/drivers/staging/media/hantro/hantro_g1_vp8_dec.c b/drivers/staging/media/hantro/hantro_g1_vp8_dec.c
index 57002ba701768..3cd90637ac63e 100644
--- a/drivers/staging/media/hantro/hantro_g1_vp8_dec.c
+++ b/drivers/staging/media/hantro/hantro_g1_vp8_dec.c
@@ -376,12 +376,17 @@ static void cfg_ref(struct hantro_ctx *ctx,
 	vb2_dst = hantro_get_dst_buf(ctx);
 
 	ref = hantro_get_ref(ctx, hdr->last_frame_ts);
-	if (!ref)
+	if (!ref) {
+		vpu_debug(0, "failed to find last frame ts=%llu\n",
+			  hdr->last_frame_ts);
 		ref = vb2_dma_contig_plane_dma_addr(&vb2_dst->vb2_buf, 0);
+	}
 	vdpu_write_relaxed(vpu, ref, G1_REG_ADDR_REF(0));
 
 	ref = hantro_get_ref(ctx, hdr->golden_frame_ts);
-	WARN_ON(!ref && hdr->golden_frame_ts);
+	if (!ref && hdr->golden_frame_ts)
+		vpu_debug(0, "failed to find golden frame ts=%llu\n",
+			  hdr->golden_frame_ts);
 	if (!ref)
 		ref = vb2_dma_contig_plane_dma_addr(&vb2_dst->vb2_buf, 0);
 	if (hdr->flags & V4L2_VP8_FRAME_FLAG_SIGN_BIAS_GOLDEN)
@@ -389,7 +394,9 @@ static void cfg_ref(struct hantro_ctx *ctx,
 	vdpu_write_relaxed(vpu, ref, G1_REG_ADDR_REF(4));
 
 	ref = hantro_get_ref(ctx, hdr->alt_frame_ts);
-	WARN_ON(!ref && hdr->alt_frame_ts);
+	if (!ref && hdr->alt_frame_ts)
+		vpu_debug(0, "failed to find alt frame ts=%llu\n",
+			  hdr->alt_frame_ts);
 	if (!ref)
 		ref = vb2_dma_contig_plane_dma_addr(&vb2_dst->vb2_buf, 0);
 	if (hdr->flags & V4L2_VP8_FRAME_FLAG_SIGN_BIAS_ALT)
diff --git a/drivers/staging/media/hantro/rk3399_vpu_hw_vp8_dec.c b/drivers/staging/media/hantro/rk3399_vpu_hw_vp8_dec.c
index 8661a3cc1e6b5..3616192016053 100644
--- a/drivers/staging/media/hantro/rk3399_vpu_hw_vp8_dec.c
+++ b/drivers/staging/media/hantro/rk3399_vpu_hw_vp8_dec.c
@@ -453,12 +453,17 @@ static void cfg_ref(struct hantro_ctx *ctx,
 	vb2_dst = hantro_get_dst_buf(ctx);
 
 	ref = hantro_get_ref(ctx, hdr->last_frame_ts);
-	if (!ref)
+	if (!ref) {
+		vpu_debug(0, "failed to find last frame ts=%llu\n",
+			  hdr->last_frame_ts);
 		ref = vb2_dma_contig_plane_dma_addr(&vb2_dst->vb2_buf, 0);
+	}
 	vdpu_write_relaxed(vpu, ref, VDPU_REG_VP8_ADDR_REF0);
 
 	ref = hantro_get_ref(ctx, hdr->golden_frame_ts);
-	WARN_ON(!ref && hdr->golden_frame_ts);
+	if (!ref && hdr->golden_frame_ts)
+		vpu_debug(0, "failed to find golden frame ts=%llu\n",
+			  hdr->golden_frame_ts);
 	if (!ref)
 		ref = vb2_dma_contig_plane_dma_addr(&vb2_dst->vb2_buf, 0);
 	if (hdr->flags & V4L2_VP8_FRAME_FLAG_SIGN_BIAS_GOLDEN)
@@ -466,7 +471,9 @@ static void cfg_ref(struct hantro_ctx *ctx,
 	vdpu_write_relaxed(vpu, ref, VDPU_REG_VP8_ADDR_REF2_5(2));
 
 	ref = hantro_get_ref(ctx, hdr->alt_frame_ts);
-	WARN_ON(!ref && hdr->alt_frame_ts);
+	if (!ref && hdr->alt_frame_ts)
+		vpu_debug(0, "failed to find alt frame ts=%llu\n",
+			  hdr->alt_frame_ts);
 	if (!ref)
 		ref = vb2_dma_contig_plane_dma_addr(&vb2_dst->vb2_buf, 0);
 	if (hdr->flags & V4L2_VP8_FRAME_FLAG_SIGN_BIAS_ALT)