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IMallocSpy cannot cause an allocation failure when cb == 0.

This commit is contained in:
Mike Hearn 2003-07-22 01:01:06 +00:00 committed by Alexandre Julliard
parent 72d8aa5ec2
commit cb7db104dd
1 changed files with 8 additions and 6 deletions
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14
dlls/ole32/ifs.c
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@ -144,16 +144,18 @@ static LPVOID WINAPI IMalloc_fnAlloc(LPMALLOC iface, DWORD cb) {
TRACE("(%ld)\n",cb);
if(Malloc32.pSpy) {
DWORD preAllocResult;
EnterCriticalSection(&IMalloc32_SpyCS);
cb = IMallocSpy_PreAlloc(Malloc32.pSpy, cb);
if (0==cb) {
/* PreAlloc can force Alloc to fail */
LeaveCriticalSection(&IMalloc32_SpyCS);
preAllocResult = IMallocSpy_PreAlloc(Malloc32.pSpy, cb);
if ((cb != 0) && (preAllocResult == 0)) {
/* PreAlloc can force Alloc to fail, but not if cb == 0 */
TRACE("returning null\n");
LeaveCriticalSection(&IMalloc32_SpyCS);
return NULL;
}
}
addr = HeapAlloc(GetProcessHeap(),0,cb);
if(Malloc32.pSpy) {