file_cache_write() can get a NULL buffer and still a size != 0, which the

request handling wasn't taking into account.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37640 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/userlandfs/private/Requests.h

@@ -1838,6 +1838,7 @@ public:
 
 	void*		cookie;
 	Address		buffer;
+	size_t		size;
 	off_t		pos;
 };