st/xorg: Check that ms->api->destroy is not NULL before calling it.

Fixes potential crash on X server shutdown.
2009-10-01 16:45:11 +02:00 · 2009-10-01 16:45:11 +02:00 · e32a341be6
parent 0b466c8705
commit e32a341be6
1 changed files with 3 additions and 1 deletions
--- a/src/gallium/state_trackers/xorg/xorg_driver.c
+++ b/src/gallium/state_trackers/xorg/xorg_driver.c
@ -726,8 +726,10 @@ CloseScreen(int scrnIndex, ScreenPtr pScreen)
    if (ms->exa)
 	xorg_exa_close(pScrn);

+    if (ms->api->destroy)
 	ms->api->destroy(ms->api);
-	ms->api = NULL;
+    ms->api = NULL;
+
    drmClose(ms->fd);
    ms->fd = -1;