diff options
Diffstat (limited to 'drivers/char/mspec.c')
| -rw-r--r-- | drivers/char/mspec.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/char/mspec.c b/drivers/char/mspec.c index 7ac30612068b..5685b7a77c38 100644 --- a/drivers/char/mspec.c +++ b/drivers/char/mspec.c @@ -265,7 +265,8 @@ mspec_mmap(struct file *file, struct vm_area_struct *vma, int type) vdata->refcnt = ATOMIC_INIT(1); vma->vm_private_data = vdata; - vma->vm_flags |= (VM_IO | VM_LOCKED | VM_RESERVED | VM_PFNMAP); + vma->vm_flags |= (VM_IO | VM_LOCKED | VM_RESERVED | VM_PFNMAP | + VM_DONTEXPAND); if (vdata->type == MSPEC_FETCHOP || vdata->type == MSPEC_UNCACHED) vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); vma->vm_ops = &mspec_vm_ops; |