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-rw-r--r--mm/memory.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/mm/memory.c b/mm/memory.c
index fd5d4c6dc762..13667681cd16 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1768,13 +1768,14 @@ do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
1768 unsigned long addr) 1768 unsigned long addr)
1769{ 1769{
1770 pte_t entry; 1770 pte_t entry;
1771 struct page * page = ZERO_PAGE(addr);
1772 1771
1773 /* Read-only mapping of ZERO_PAGE. */ 1772 /* Mapping of ZERO_PAGE - vm_page_prot is readonly */
1774 entry = pte_wrprotect(mk_pte(ZERO_PAGE(addr), vma->vm_page_prot)); 1773 entry = mk_pte(ZERO_PAGE(addr), vma->vm_page_prot);
1775 1774
1776 /* ..except if it's a write access */ 1775 /* ..except if it's a write access */
1777 if (write_access) { 1776 if (write_access) {
1777 struct page *page;
1778
1778 /* Allocate our own private page. */ 1779 /* Allocate our own private page. */
1779 pte_unmap(page_table); 1780 pte_unmap(page_table);
1780 spin_unlock(&mm->page_table_lock); 1781 spin_unlock(&mm->page_table_lock);