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-rw-r--r--arch/powerpc/mm/pgtable_32.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index 38ff35f2142..22972cd83cc 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -266,7 +266,8 @@ int map_page(unsigned long va, phys_addr_t pa, int flags)
/* The PTE should never be already set nor present in the
* hash table
*/
- BUG_ON(pte_val(*pg) & (_PAGE_PRESENT | _PAGE_HASHPTE));
+ BUG_ON((pte_val(*pg) & (_PAGE_PRESENT | _PAGE_HASHPTE)) &&
+ flags);
set_pte_at(&init_mm, va, pg, pfn_pte(pa >> PAGE_SHIFT,
__pgprot(flags)));
}