[PATCH] powerpc/mm: use the correct pointer when setting a 2M pte

[Reza Arbab <arbab@linux.vnet.ibm.com>]

When setting a 2M pte, radix__map_kernel_page() is using the address

	ptep = (pte_t *)pudp;

Fix this conversion to use pmdp instead. Use pmdp_ptep() to do this
instead of casting the pointer.

Signed-off-by: Reza Arbab <arbab@linux.vnet.ibm.com>
---
 arch/powerpc/mm/pgtable-radix.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c
index cfa53cc..34f1a0d 100644
--- a/arch/powerpc/mm/pgtable-radix.c
+++ b/arch/powerpc/mm/pgtable-radix.c
@@ -65,7 +65,7 @@ int radix__map_kernel_page(unsigned long ea, unsigned long pa,
 		if (!pmdp)
 			return -ENOMEM;
 		if (map_page_size == PMD_SIZE) {
-			ptep = (pte_t *)pudp;
+			ptep = pmdp_ptep(pmdp);
 			goto set_the_pte;
 		}
 		ptep = pte_alloc_kernel(pmdp, ea);
@@ -90,7 +90,7 @@ int radix__map_kernel_page(unsigned long ea, unsigned long pa,
 		}
 		pmdp = pmd_offset(pudp, ea);
 		if (map_page_size == PMD_SIZE) {
-			ptep = (pte_t *)pudp;
+			ptep = pmdp_ptep(pmdp);
 			goto set_the_pte;
 		}
 		if (!pmd_present(*pmdp)) {
-- 
1.8.3.1