xf86: check return value of XF86_CRTC_CONFIG_PTR in xf86CompatOutput()
If privates[xf86CrtcConfigPrivateIndex].ptr
is NULL, this will cause
a segfault.
Possible fix for #1241 (closed)
If privates[xf86CrtcConfigPrivateIndex].ptr
is NULL, this will cause
a segfault.
Possible fix for #1241 (closed)