diff --git a/drivers/bus/sunxi-rsb.c b/drivers/bus/sunxi-rsb.c
index 25996e256110..795c9d9c96a6 100644
--- a/drivers/bus/sunxi-rsb.c
+++ b/drivers/bus/sunxi-rsb.c
@@ -330,7 +330,7 @@ static int sunxi_rsb_read(struct sunxi_rsb *rsb, u8 rtaddr, u8 addr,
 		cmd = RSB_CMD_RD32;
 		break;
 	default:
-		dev_err(rsb->dev, "Invalid access width: %d\n", len);
+		dev_err(rsb->dev, "Invalid access width: %zd\n", len);
 		return -EINVAL;
 	}
 
@@ -372,7 +372,7 @@ static int sunxi_rsb_write(struct sunxi_rsb *rsb, u8 rtaddr, u8 addr,
 		cmd = RSB_CMD_WR32;
 		break;
 	default:
-		dev_err(rsb->dev, "Invalid access width: %d\n", len);
+		dev_err(rsb->dev, "Invalid access width: %zd\n", len);
 		return -EINVAL;
 	}