Disable ggml-alloc assert for CPU version of Sam.cpp if the view does…

…n't have a buffer (ggerganov#562)

src/ggml-alloc.c

@@ -386,7 +386,7 @@ static void init_view(struct ggml_allocr * alloc, struct ggml_tensor * view) {
 
  // FIXME: the view should be initialized by the owning buffer, but currently this breaks the CUDA backend
  // due to the ggml_tensor_extra_gpu ring buffer overwriting the KV cache extras
- assert(ggml_allocr_is_measure(alloc) || view->buffer->backend == alloc->buffer->backend);
+ assert(ggml_allocr_is_measure(alloc) || !view->buffer || view->buffer->backend == alloc->buffer->backend);
  ggml_backend_buffer_init_tensor(alloc->buffer, view);
 }