diff options
Diffstat (limited to 'drivers/misc/sgi-gru/grufile.c')
| -rw-r--r-- | drivers/misc/sgi-gru/grufile.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c index 09c9c65ff9d1..23c91f5f6b61 100644 --- a/drivers/misc/sgi-gru/grufile.c +++ b/drivers/misc/sgi-gru/grufile.c @@ -112,6 +112,10 @@ static int gru_file_mmap(struct file *file, struct vm_area_struct *vma) if ((vma->vm_flags & (VM_SHARED | VM_WRITE)) != (VM_SHARED | VM_WRITE)) return -EPERM; + if (vma->vm_start & (GRU_GSEG_PAGESIZE - 1) || + vma->vm_end & (GRU_GSEG_PAGESIZE - 1)) + return -EINVAL; + vma->vm_flags |= (VM_IO | VM_DONTCOPY | VM_LOCKED | VM_DONTEXPAND | VM_PFNMAP | VM_RESERVED); @@ -471,8 +475,8 @@ struct vm_operations_struct gru_vm_ops = { module_init(gru_init); module_exit(gru_exit); -module_param(options, ulong, 0644); -MODULE_PARM_DESC(options, "Various debug options"); +module_param(gru_options, ulong, 0644); +MODULE_PARM_DESC(gru_options, "Various debug options"); MODULE_AUTHOR("Silicon Graphics, Inc."); MODULE_LICENSE("GPL"); |