Ticket #4125: 4125.patch

src/add-ons/kernel/file_systems/userlandfs/private/RequestAllocator.cpp

@@ -264 +264 @@
 RequestAllocator::AllocateData(Address& address, const void* data, int32 size,
     int32 align, bool deferredInit)
 {
-    void* destination;
-    status_t error = AllocateAddress(address, size, align, &destination,
-        deferredInit);
-    if (error != B_OK)
-        return error;
-    if (size > 0)
-        memcpy(destination, data, size);
+    status_t error = B_OK;
+    if (data) {
+        void* destination;
+        error = AllocateAddress(address, size, align, &destination,
+            deferredInit);
+        if (error != B_OK)
+            return error;
+        if (size > 0)
+            memcpy(destination, data, size);
+    } else
+        address.SetTo(-1, 0, 0);
     return error;
 }