watchdog: Improve initialisation error message and documentation

[pandora-kernel.git] / mm / pagewalk.c

diff --git a/mm/pagewalk.c b/mm/pagewalk.c
index 8b1a2ce..38cc58b 100644 (file)
--- a/mm/pagewalk.c
+++ b/mm/pagewalk.c
@@ -139,7 +139,6 @@ int walk_page_range(unsigned long addr, unsigned long end,
        pgd_t *pgd;
        unsigned long next;
        int err = 0;
-       struct vm_area_struct *vma;
 
        if (addr >= end)
                return err;
@@ -149,15 +148,17 @@ int walk_page_range(unsigned long addr, unsigned long end,
 
        pgd = pgd_offset(walk->mm, addr);
        do {
+               struct vm_area_struct *uninitialized_var(vma);
+
                next = pgd_addr_end(addr, end);
 
+#ifdef CONFIG_HUGETLB_PAGE
                /*
                 * handle hugetlb vma individually because pagetable walk for
                 * the hugetlb page is dependent on the architecture and
                 * we can't handled it in the same manner as non-huge pages.
                 */
                vma = find_vma(walk->mm, addr);
-#ifdef CONFIG_HUGETLB_PAGE
                if (vma && is_vm_hugetlb_page(vma)) {
                        if (vma->vm_end < next)
                                next = vma->vm_end;