From 248a1df63430717550adb0e79068d8f9fcfacb0b Mon Sep 17 00:00:00 2001 From: Peter Hutterer Date: Mon, 12 May 2008 20:05:21 +0930 Subject: [PATCH] render: don't dereference cursor if cursor is NULL. --- render/animcur.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/render/animcur.c b/render/animcur.c index a87718d12..362607f7a 100644 --- a/render/animcur.c +++ b/render/animcur.c @@ -93,7 +93,7 @@ static CursorBits animCursorBits = { static int AnimCurGeneration; static DevPrivateKey AnimCurScreenPrivateKey = &AnimCurScreenPrivateKey; -#define IsAnimCur(c) ((c)->bits == &animCursorBits) +#define IsAnimCur(c) ((c) && ((c)->bits == &animCursorBits)) #define GetAnimCur(c) ((AnimCurPtr) ((c) + 1)) #define GetAnimCurScreen(s) ((AnimCurScreenPtr)dixLookupPrivate(&(s)->devPrivates, AnimCurScreenPrivateKey)) #define GetAnimCurScreenIfSet(s) GetAnimCurScreen(s)