diff options
Diffstat (limited to 'drivers/char/drm/drm_ioctl.c')
| -rw-r--r-- | drivers/char/drm/drm_ioctl.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/char/drm/drm_ioctl.c b/drivers/char/drm/drm_ioctl.c index 555f323b8a3..31dfe83141e 100644 --- a/drivers/char/drm/drm_ioctl.c +++ b/drivers/char/drm/drm_ioctl.c @@ -331,21 +331,23 @@ int drm_setversion(DRM_IOCTL_ARGS) int if_version; drm_set_version_t __user *argp = (void __user *)data; - DRM_COPY_FROM_USER_IOCTL(sv, argp, sizeof(sv)); + if (copy_from_user(&sv, argp, sizeof(sv))) + return -EFAULT; retv.drm_di_major = DRM_IF_MAJOR; retv.drm_di_minor = DRM_IF_MINOR; retv.drm_dd_major = dev->driver->major; retv.drm_dd_minor = dev->driver->minor; - DRM_COPY_TO_USER_IOCTL(argp, retv, sizeof(sv)); + if (copy_to_user(argp, &retv, sizeof(sv))) + return -EFAULT; if (sv.drm_di_major != -1) { if (sv.drm_di_major != DRM_IF_MAJOR || sv.drm_di_minor < 0 || sv.drm_di_minor > DRM_IF_MINOR) return EINVAL; if_version = DRM_IF_VERSION(sv.drm_di_major, sv.drm_di_minor); - dev->if_version = DRM_MAX(if_version, dev->if_version); + dev->if_version = max(if_version, dev->if_version); if (sv.drm_di_minor >= 1) { /* * Version 1.1 includes tying of DRM to specific device |