Mesa (master): st/glx: check if deleting head of buffer list

[Brian Paul]

Module: Mesa
Branch: master
Commit: 8cbc1517c1ba508dbf4d19f6eee729cdd1df8c37
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=8cbc1517c1ba508dbf4d19f6eee729cdd1df8c37

Author: Brian Paul <brianp at vmware.com>
Date:   Mon May 24 16:19:21 2010 -0600

st/glx: check if deleting head of buffer list

---

 src/gallium/state_trackers/glx/xlib/xm_api.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/src/gallium/state_trackers/glx/xlib/xm_api.c b/src/gallium/state_trackers/glx/xlib/xm_api.c
index fc12a9a..c0c4183 100644
--- a/src/gallium/state_trackers/glx/xlib/xm_api.c
+++ b/src/gallium/state_trackers/glx/xlib/xm_api.c
@@ -1184,6 +1184,10 @@ void xmesa_destroy_buffers_on_display(Display *dpy)
       next = b->Next;
       if (b->xm_visual->display == dpy) {
          xmesa_free_buffer(b);
+         /* delete head of list? */
+         if (XMesaBufferList == b) {
+            XMesaBufferList = next;
+         }
       }
    }
 }