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Properly round on unmapping.

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This commit is contained in:
Warner Losh 2014-03-08 06:06:42 +00:00
parent 1dd7152066
commit ebb61891fb
1 changed files with 5 additions and 1 deletions
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6
sys/arm/at91/at91.c
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@ -84,8 +84,12 @@ at91_bs_unmap(void *t, bus_space_handle_t h, bus_size_t size)
{
vm_offset_t va, endva;
if (t == 0)
return;
va = trunc_page((vm_offset_t)t);
endva = va + round_page(size);
if (va >= AT91_BASE && va <= AT91_BASE + 0xff00000)
return;
endva = round_page((vm_offset_t)t + size);
/* Free the kernel virtual mapping. */
kva_free(va, endva - va);