diff options
Diffstat (limited to 'drivers/video/fbmem.c')
| -rw-r--r-- | drivers/video/fbmem.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c index 86291dcd964..dcb669eb453 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; |