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-rw-r--r--mm/memory.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/memory.c b/mm/memory.c
index 5596d77..5c55270 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3613,11 +3613,13 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
ret = get_user_pages(tsk, mm, addr, 1,
write, 1, &page, &vma);
if (ret <= 0) {
+#ifndef CONFIG_HAVE_IOREMAP_PROT
+ break;
+#else
/*
* Check if this is a VM_IO | VM_PFNMAP VMA, which
* we can access using slightly different code.
*/
-#ifdef CONFIG_HAVE_IOREMAP_PROT
vma = find_vma(mm, addr);
if (!vma || vma->vm_start > addr)
break;
@@ -3625,9 +3627,9 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
ret = vma->vm_ops->access(vma, addr, buf,
len, write);
if (ret <= 0)
-#endif
break;
bytes = ret;
+#endif
} else {
bytes = len;
offset = addr & (PAGE_SIZE-1);
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