[PATCH 2/3] glx: don't leak fbconfigs

[przanoni at gmail.com]

From: Paulo Zanoni <paulo.r.zanoni at intel.com>

29,952 (208 direct, 29,744 indirect) bytes in 1 blocks are definitely lost in loss record 573 of 573
   at 0x4C2779D: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
   by 0x4829BC: createModeFromConfig (glxdricommon.c:131)
   by 0x482C09: glxConvertConfigs (glxdricommon.c:185)
   by 0x482788: __glXDRIscreenProbe (glxdriswrast.c:468)
   by 0x4812FA: GlxExtensionInit (glxext.c:327)
   by 0x41FB14: InitExtensions (miinitext.c:471)
   by 0x568636: main (main.c:208)

Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
---
 glx/glxscreens.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/glx/glxscreens.c b/glx/glxscreens.c
index ebb9747..928cf0c 100644
--- a/glx/glxscreens.c
+++ b/glx/glxscreens.c
@@ -419,6 +419,15 @@ void __glXScreenInit(__GLXscreen *pGlxScreen, ScreenPtr pScreen)
 
 void __glXScreenDestroy(__GLXscreen *screen)
 {
+    __GLXconfig *head, *next;
+
+    head = screen->fbconfigs;
+    while (head) {
+	next = head->next;
+	free(head);
+	head = next;
+    }
+
     free(screen->GLXvendor);
     free(screen->GLXextensions);
     free(screen->GLextensions);
-- 
1.7.7