s390/mm: fixing calls of pte_unmap_unlock

pte_unmap works on page table entry pointers, derefencing should be avoided.
As on s390 pte_unmap is a NOP, this is more a cleanup if we want to supply
later such function.

Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 296b61a..1b79ca6 100644 (file)
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -656,7 +656,7 @@ void __gmap_zap(struct gmap *gmap, unsigned long gaddr)
        }
        pgste_set_unlock(ptep, pgste);
 out_pte:
-       pte_unmap_unlock(*ptep, ptl);
+       pte_unmap_unlock(ptep, ptl);
 }
 EXPORT_SYMBOL_GPL(__gmap_zap);
 
@@ -943,7 +943,7 @@ retry:
        }
        if (!(pte_val(*ptep) & _PAGE_INVALID) &&
             (pte_val(*ptep) & _PAGE_PROTECT)) {
-               pte_unmap_unlock(*ptep, ptl);
+               pte_unmap_unlock(ptep, ptl);
                if (fixup_user_fault(current, mm, addr, FAULT_FLAG_WRITE)) {
                        up_read(&mm->mmap_sem);
                        return -EFAULT;
@@ -974,7 +974,7 @@ retry:
                pgste_val(new) |= PGSTE_UC_BIT;
 
        pgste_set_unlock(ptep, new);
-       pte_unmap_unlock(*ptep, ptl);
+       pte_unmap_unlock(ptep, ptl);
        up_read(&mm->mmap_sem);
        return 0;
 }