diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c index 53747ac945b8..84df12ff131a 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c @@ -6,7 +6,7 @@ * GPL LICENSE SUMMARY * * Copyright(c) 2017 Intel Deutschland GmbH - * Copyright(c) 2018 - 2019 Intel Corporation + * Copyright(c) 2018 - 2020 Intel Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -20,7 +20,7 @@ * BSD LICENSE * * Copyright(c) 2017 Intel Deutschland GmbH - * Copyright(c) 2018 - 2019 Intel Corporation + * Copyright(c) 2018 - 2020 Intel Corporation * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -1272,17 +1272,25 @@ int iwl_trans_pcie_dyn_txq_alloc_dma(struct iwl_trans *trans, struct iwl_txq **intxq, int size, unsigned int timeout) { + size_t bc_tbl_size, bc_tbl_entries; + struct iwl_txq *txq; int ret; - struct iwl_txq *txq; + if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) { + bc_tbl_size = sizeof(struct iwl_gen3_bc_tbl); + bc_tbl_entries = bc_tbl_size / sizeof(u16); + } else { + bc_tbl_size = sizeof(struct iwlagn_scd_bc_tbl); + bc_tbl_entries = bc_tbl_size / sizeof(u16); + } + + if (WARN_ON(size > bc_tbl_entries)) + return -EINVAL; + txq = kzalloc(sizeof(*txq), GFP_KERNEL); if (!txq) return -ENOMEM; - ret = iwl_pcie_alloc_dma_ptr(trans, &txq->bc_tbl, - (trans->trans_cfg->device_family >= - IWL_DEVICE_FAMILY_AX210) ? - sizeof(struct iwl_gen3_bc_tbl) : - sizeof(struct iwlagn_scd_bc_tbl)); + ret = iwl_pcie_alloc_dma_ptr(trans, &txq->bc_tbl, bc_tbl_size); if (ret) { IWL_ERR(trans, "Scheduler BC Table allocation failed\n"); kfree(txq); |