[PATCH] list.h: don't crash when removing an element from a NULL list
Peter Hutterer
peter.hutterer at who-t.net
Wed Jul 4 23:17:56 PDT 2012
Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
---
Keith, please merge this directly if you're happy with it.
include/list.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/list.h b/include/list.h
index 96c0bcb..d54a207 100644
--- a/include/list.h
+++ b/include/list.h
@@ -453,7 +453,7 @@ xorg_list_is_empty(struct xorg_list *head)
#define nt_list_del(_entry, _list, _type, _member) \
do { \
_type *__e = _entry; \
- if (__e == NULL) break; \
+ if (__e == NULL || _list == NULL) break; \
if ((_list) == __e) { \
_list = __e->_member; \
} else { \
--
1.7.10.4
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