diff options
| -rw-r--r-- | src/glx/x11/glxcmds.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/glx/x11/glxcmds.c b/src/glx/x11/glxcmds.c index e5c0db4c968..b9e0706d312 100644 --- a/src/glx/x11/glxcmds.c +++ b/src/glx/x11/glxcmds.c @@ -1702,7 +1702,8 @@ PUBLIC GLXFBConfig *glXGetFBConfigs(Display *dpy, int screen, int *nelements) int i; *nelements = 0; - if ( (priv->screenConfigs != NULL) + if ( priv + && (priv->screenConfigs != NULL) && (screen >= 0) && (screen <= ScreenCount(dpy)) && (priv->screenConfigs[screen].configs != NULL) && (priv->screenConfigs[screen].configs->fbconfigID != GLX_DONT_CARE) ) { |