1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/gpu/drm/udl/udl_gem.c b/drivers/gpu/drm/udl/udl_gem.c
index 852642dc1187..92f19ef329b0 100644
--- a/drivers/gpu/drm/udl/udl_gem.c
+++ b/drivers/gpu/drm/udl/udl_gem.c
@@ -71,6 +71,20 @@ int udl_dumb_destroy(struct drm_file *file, struct drm_device *dev,
         return drm_gem_handle_delete(file, handle);
 }
 
+int udl_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+        int ret;
+
+        ret = drm_gem_mmap(filp, vma);
+        if (ret)
+                return ret;
+
+        vma->vm_flags &= ~VM_PFNMAP;
+        vma->vm_flags |= VM_MIXEDMAP;
+
+        return ret;
+}
+
 int udl_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 {
         struct udl_gem_object *obj = to_udl_bo(vma->vm_private_data);