diff --git a/drivers/video/rockchip/mpp/mpp_iep2.c b/drivers/video/rockchip/mpp/mpp_iep2.c
index 9fb2cedbace1..e92c68827704 100644
--- a/drivers/video/rockchip/mpp/mpp_iep2.c
+++ b/drivers/video/rockchip/mpp/mpp_iep2.c
@@ -266,8 +266,8 @@ static int iep2_process_reg_fd(struct mpp_session *session,
 
 		mem_region = mpp_task_attach_fd(&task->mpp_task, usr_fd);
 		if (IS_ERR(mem_region)) {
-			mpp_debug(DEBUG_IOMMU, "reg[%3d]: %08x failed\n",
-				  iep2_addr_rnum[i], paddr[i]);
+			mpp_err("reg[%03d]: %08x failed\n",
+				iep2_addr_rnum[i], paddr[i]);
 			return PTR_ERR(mem_region);
 		}
 
diff --git a/drivers/video/rockchip/mpp/mpp_rkvdec.c b/drivers/video/rockchip/mpp/mpp_rkvdec.c
index f18f2c6624f6..c39af5812539 100644
--- a/drivers/video/rockchip/mpp/mpp_rkvdec.c
+++ b/drivers/video/rockchip/mpp/mpp_rkvdec.c
@@ -593,6 +593,7 @@ static int fill_scaling_list_pps(struct rkvdec_task *task,
 		mem_region = mpp_task_attach_fd(&task->mpp_task,
 						scaling_fd);
 		if (IS_ERR(mem_region)) {
+			mpp_err("scaling list fd %d attach failed\n", scaling_fd);
 			ret = PTR_ERR(mem_region);
 			goto done;
 		}
@@ -727,8 +728,11 @@ static int rkvdec_process_reg_fd(struct mpp_session *session,
 			offset = task->reg[idx] >> 10 << 4;
 		}
 		mem_region = mpp_task_attach_fd(&task->mpp_task, fd);
-		if (IS_ERR(mem_region))
+		if (IS_ERR(mem_region)) {
+			mpp_err("reg[%03d]: %08x fd %d attach failed\n",
+				idx, task->reg[idx], fd);
 			return -EFAULT;
+		}
 
 		iova = mem_region->iova;
 		task->reg[idx] = iova + offset;
diff --git a/drivers/video/rockchip/mpp/mpp_vdpu1.c b/drivers/video/rockchip/mpp/mpp_vdpu1.c
index de6310c8229e..025566ba1b2e 100644
--- a/drivers/video/rockchip/mpp/mpp_vdpu1.c
+++ b/drivers/video/rockchip/mpp/mpp_vdpu1.c
@@ -263,8 +263,11 @@ static int vdpu_process_reg_fd(struct mpp_session *session,
 			offset = task->reg[idx] >> 10 << 4;
 		}
 		mem_region = mpp_task_attach_fd(&task->mpp_task, fd);
-		if (IS_ERR(mem_region))
+		if (IS_ERR(mem_region)) {
+			mpp_err("reg[%03d]: %08x fd %d attach failed\n",
+				idx, task->reg[idx], fd);
 			goto fail;
+		}
 
 		iova = mem_region->iova;
 		mpp_debug(DEBUG_IOMMU, "DMV[%3d]: %3d => %pad + offset %10d\n",
diff --git a/drivers/video/rockchip/mpp/mpp_vdpu2.c b/drivers/video/rockchip/mpp/mpp_vdpu2.c
index 0344f465a579..0a921649c05e 100644
--- a/drivers/video/rockchip/mpp/mpp_vdpu2.c
+++ b/drivers/video/rockchip/mpp/mpp_vdpu2.c
@@ -224,8 +224,11 @@ static int vdpu_process_reg_fd(struct mpp_session *session,
 			offset = task->reg[idx] >> 10 << 4;
 		}
 		mem_region = mpp_task_attach_fd(&task->mpp_task, fd);
-		if (IS_ERR(mem_region))
+		if (IS_ERR(mem_region)) {
+			mpp_err("reg[%3d]: %08x fd %d attach failed\n",
+				idx, task->reg[idx], fd);
 			return -EFAULT;
+		}
 
 		iova = mem_region->iova;
 		mpp_debug(DEBUG_IOMMU, "DMV[%3d]: %3d => %pad + offset %10d\n",