diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/fw/uefi.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/uefi.c | 31 |
1 files changed, 14 insertions, 17 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/uefi.c b/drivers/net/wireless/intel/iwlwifi/fw/uefi.c index 64b45a5b767e..1666ef3a482e 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/uefi.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/uefi.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* - * Copyright(c) 2021-2022 Intel Corporation + * Copyright(c) 2021-2023 Intel Corporation */ #include "iwl-drv.h" @@ -123,9 +123,9 @@ done: return 0; } -static int iwl_uefi_reduce_power_parse(struct iwl_trans *trans, - const u8 *data, size_t len, - struct iwl_pnvm_image *pnvm_data) +int iwl_uefi_reduce_power_parse(struct iwl_trans *trans, + const u8 *data, size_t len, + struct iwl_pnvm_image *pnvm_data) { const struct iwl_ucode_tlv *tlv; @@ -181,17 +181,15 @@ static int iwl_uefi_reduce_power_parse(struct iwl_trans *trans, return -ENOENT; } -int iwl_uefi_get_reduced_power(struct iwl_trans *trans, - struct iwl_pnvm_image *pnvm_data) +u8 *iwl_uefi_get_reduced_power(struct iwl_trans *trans, size_t *len) { struct pnvm_sku_package *package; unsigned long package_size; efi_status_t status; - int ret; - size_t len = 0; + u8 *data; if (!efi_rt_services_supported(EFI_RT_SUPPORTED_GET_VARIABLE)) - return -ENODEV; + return ERR_PTR(-ENODEV); /* * TODO: we hardcode a maximum length here, because reading @@ -202,7 +200,7 @@ int iwl_uefi_get_reduced_power(struct iwl_trans *trans, package = kmalloc(package_size, GFP_KERNEL); if (!package) - return -ENOMEM; + return ERR_PTR(-ENOMEM); status = efi.get_variable(IWL_UEFI_REDUCED_POWER_NAME, &IWL_EFI_VAR_GUID, NULL, &package_size, package); @@ -211,23 +209,22 @@ int iwl_uefi_get_reduced_power(struct iwl_trans *trans, "Reduced Power UEFI variable not found 0x%lx (len %lu)\n", status, package_size); kfree(package); - return -ENOENT; + return ERR_PTR(-ENOENT); } IWL_DEBUG_FW(trans, "Read reduced power from UEFI with size %lu\n", package_size); - len = package_size; IWL_DEBUG_FW(trans, "rev %d, total_size %d, n_skus %d\n", package->rev, package->total_size, package->n_skus); - ret = iwl_uefi_reduce_power_parse(trans, package->data, - len - sizeof(*package), - pnvm_data); - + *len = package_size - sizeof(*package); + data = kmemdup(package->data, *len, GFP_KERNEL); + if (!data) + return ERR_PTR(-ENOMEM); kfree(package); - return ret; + return data; } static int iwl_uefi_step_parse(struct uefi_cnv_common_step_data *common_step_data, |