windows: fix _mesa_unreference_framebuffer() to pass ** type.

diff --git a/src/mesa/drivers/windows/gdi/wmesa.c b/src/mesa/drivers/windows/gdi/wmesa.c
index 1ddea33..42432d6 100644 (file)
--- a/src/mesa/drivers/windows/gdi/wmesa.c
+++ b/src/mesa/drivers/windows/gdi/wmesa.c
@@ -56,11 +56,13 @@ wmesa_free_framebuffer(HDC hdc)
        prev = pwfb;
     }
     if (pwfb) {
+        struct gl_framebuffer *fb;
        if (pwfb == FirstFramebuffer)
            FirstFramebuffer = pwfb->next;
        else
            prev->next = pwfb->next;
-        _mesa_unreference_framebuffer(&pwfb->Base);
+        fb = &pwfb->Base;
+        _mesa_unreference_framebuffer(&fb); 
     }
 }