diff options
Diffstat (limited to 'src/glx/glxcurrent.c')
| -rw-r--r-- | src/glx/glxcurrent.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/glx/glxcurrent.c b/src/glx/glxcurrent.c index fd04929b89f..2b9c708c3ee 100644 --- a/src/glx/glxcurrent.c +++ b/src/glx/glxcurrent.c @@ -194,6 +194,13 @@ MakeContextCurrent(Display * dpy, GLXDrawable draw, return True; } + /* can't have only one be 0 */ + if (!!draw != !!read) { + __glXUnlock(); + __glXSendError(dpy, BadMatch, None, X_GLXMakeContextCurrent, True); + return False; + } + if (oldGC != &dummyContext) { if (--oldGC->thread_refcount == 0) { oldGC->vtable->unbind(oldGC, gc); |