diff options
| -rw-r--r-- | hw/xfree86/modes/xf86Crtc.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/hw/xfree86/modes/xf86Crtc.c b/hw/xfree86/modes/xf86Crtc.c index cb13debb3..217e01c75 100644 --- a/hw/xfree86/modes/xf86Crtc.c +++ b/hw/xfree86/modes/xf86Crtc.c @@ -3117,22 +3117,29 @@ xf86_crtc_clip_video_helper(ScrnInfoPtr pScrn, xf86_crtc_notify_proc_ptr xf86_wrap_crtc_notify (ScreenPtr screen, xf86_crtc_notify_proc_ptr new) { - ScrnInfoPtr scrn = xf86Screens[screen->myNum]; - xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn); - xf86_crtc_notify_proc_ptr old; - - old = config->xf86_crtc_notify; - config->xf86_crtc_notify = new; - return old; + if (xf86CrtcConfigPrivateIndex != -1) + { + ScrnInfoPtr scrn = xf86Screens[screen->myNum]; + xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn); + xf86_crtc_notify_proc_ptr old; + + old = config->xf86_crtc_notify; + config->xf86_crtc_notify = new; + return old; + } + return NULL; } void xf86_unwrap_crtc_notify(ScreenPtr screen, xf86_crtc_notify_proc_ptr old) { - ScrnInfoPtr scrn = xf86Screens[screen->myNum]; - xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn); - - config->xf86_crtc_notify = old; + if (xf86CrtcConfigPrivateIndex != -1) + { + ScrnInfoPtr scrn = xf86Screens[screen->myNum]; + xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn); + + config->xf86_crtc_notify = old; + } } void |