goto cleanup;
 
        max_leaf = query_hypervisor_info();
-       /* HvQueryHypervisorFeatures(maxLeaf); */
 
-       /*
-        * We only support running on top of Hyper-V
-        */
        rdmsrl(HV_X64_MSR_GUEST_OS_ID, hv_context.guestid);
 
        if (hv_context.guestid != 0)
        /* See if the hypercall page is already set */
        rdmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
 
-       /*
-       * Allocate the hypercall page memory
-       * virtaddr = osd_page_alloc(1);
-       */
        virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_EXEC);
 
        if (!virtaddr)