xen/swiotlb: Use page alignment for early buffer allocation.

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / xen / swiotlb-xen.c

diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 8e964b91c447b117b7d4d17731201254a79365d5..284798aaf8b1391fd8d4de7e43bff52e5721272d 100644 (file)
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -166,7 +166,7 @@ retry:
        /*
         * Get IO TLB memory from any location.
         */
-       xen_io_tlb_start = alloc_bootmem(bytes);
+       xen_io_tlb_start = alloc_bootmem_pages(PAGE_ALIGN(bytes));
        if (!xen_io_tlb_start) {
                m = "Cannot allocate Xen-SWIOTLB buffer!\n";
                goto error;
@@ -179,7 +179,7 @@ retry:
                               bytes,
                               xen_io_tlb_nslabs);
        if (rc) {
-               free_bootmem(__pa(xen_io_tlb_start), bytes);
+               free_bootmem(__pa(xen_io_tlb_start), PAGE_ALIGN(bytes));
                m = "Failed to get contiguous memory for DMA from Xen!\n"\
                    "You either: don't have the permissions, do not have"\
                    " enough free memory under 4GB, or the hypervisor memory"\