/* * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ #include "acr.h" #include <core/firmware.h> /** * Convenience function to duplicate a firmware file in memory and check that * it has the required minimum size. */ void * nvkm_acr_load_firmware(const struct nvkm_subdev *subdev, const char *name, size_t min_size) { const struct firmware *fw; void *blob; int ret; ret = nvkm_firmware_get(subdev->device, name, &fw); if (ret) return ERR_PTR(ret); if (fw->size < min_size) { nvkm_error(subdev, "%s is smaller than expected size %zu\n", name, min_size); nvkm_firmware_put(fw); return ERR_PTR(-EINVAL); } blob = kmemdup(fw->data, fw->size, GFP_KERNEL); nvkm_firmware_put(fw); if (!blob) return ERR_PTR(-ENOMEM); return blob; }