1 files changed, 2 insertions, 1 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index 5b13eea2e757..017fb23d5983 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -386,7 +386,8 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
                 }
                 charge = 0;
                 if (mpnt->vm_flags & VM_ACCOUNT) {
-                        unsigned int len = (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT;
+                        unsigned long len;
+                        len = (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT;
                         if (security_vm_enough_memory_mm(oldmm, len)) /* sic */
                                 goto fail_nomem;
                         charge = len;