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Diffstat (limited to 'src/glx/glx_pbuffer.c')
-rw-r--r--src/glx/glx_pbuffer.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/glx/glx_pbuffer.c b/src/glx/glx_pbuffer.c
index 4c122ba6dd..52e067165c 100644
--- a/src/glx/glx_pbuffer.c
+++ b/src/glx/glx_pbuffer.c
@@ -379,7 +379,8 @@ CreateDrawable(Display * dpy, const __GLcontextModes * fbconfig,
req->glxwindow = (GLXWindow) XAllocID(dpy);
req->numAttribs = (CARD32) i;
- memcpy(data, attrib_list, 8 * i);
+ if (attrib_list)
+ memcpy(data, attrib_list, 8 * i);
UnlockDisplay(dpy);
SyncHandle();