1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index 86291dcd964a..dcb669eb4532 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -1398,6 +1398,11 @@ fb_mmap(struct file *file, struct vm_area_struct * vma)
         len = info->fix.smem_len;
         mmio_pgoff = PAGE_ALIGN((start & ~PAGE_MASK) + len) >> PAGE_SHIFT;
         if (vma->vm_pgoff >= mmio_pgoff) {
+                if (info->var.accel_flags) {
+                        mutex_unlock(&info->mm_lock);
+                        return -EINVAL;
+                }
+
                 vma->vm_pgoff -= mmio_pgoff;
                 start = info->fix.mmio_start;
                 len = info->fix.mmio_len;