From: Johannes Berg <johannes.berg@xxxxxxxxx> Use the ERR_PTR() machinery to return the queue or an error, instead of having a separate out parameter. Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx> --- drivers/net/wireless/intel/iwlwifi/queue/tx.c | 26 +++++++++---------- 1 file changed, 12 insertions(+), 14 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/queue/tx.c b/drivers/net/wireless/intel/iwlwifi/queue/tx.c index f80bea04e31b..49625c679a5a 100644 --- a/drivers/net/wireless/intel/iwlwifi/queue/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/queue/tx.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* - * Copyright (C) 2020-2021 Intel Corporation + * Copyright (C) 2020-2022 Intel Corporation */ #include <net/tso.h> #include <linux/tcp.h> @@ -1083,9 +1083,8 @@ int iwl_txq_alloc(struct iwl_trans *trans, struct iwl_txq *txq, int slots_num, return -ENOMEM; } -static int iwl_txq_dyn_alloc_dma(struct iwl_trans *trans, - struct iwl_txq **intxq, int size, - unsigned int timeout) +static struct iwl_txq * +iwl_txq_dyn_alloc_dma(struct iwl_trans *trans, int size, unsigned int timeout) { size_t bc_tbl_size, bc_tbl_entries; struct iwl_txq *txq; @@ -1097,18 +1096,18 @@ static int iwl_txq_dyn_alloc_dma(struct iwl_trans *trans, bc_tbl_entries = bc_tbl_size / sizeof(u16); if (WARN_ON(size > bc_tbl_entries)) - return -EINVAL; + return ERR_PTR(-EINVAL); txq = kzalloc(sizeof(*txq), GFP_KERNEL); if (!txq) - return -ENOMEM; + return ERR_PTR(-ENOMEM); txq->bc_tbl.addr = dma_pool_alloc(trans->txqs.bc_pool, GFP_KERNEL, &txq->bc_tbl.dma); if (!txq->bc_tbl.addr) { IWL_ERR(trans, "Scheduler BC Table allocation failed\n"); kfree(txq); - return -ENOMEM; + return ERR_PTR(-ENOMEM); } ret = iwl_txq_alloc(trans, txq, size, false); @@ -1124,12 +1123,11 @@ static int iwl_txq_dyn_alloc_dma(struct iwl_trans *trans, txq->wd_timeout = msecs_to_jiffies(timeout); - *intxq = txq; - return 0; + return txq; error: iwl_txq_gen2_free_memory(trans, txq); - return ret; + return ERR_PTR(ret); } static int iwl_txq_alloc_response(struct iwl_trans *trans, struct iwl_txq *txq, @@ -1189,7 +1187,7 @@ static int iwl_txq_alloc_response(struct iwl_trans *trans, struct iwl_txq *txq, int iwl_txq_dyn_alloc(struct iwl_trans *trans, __le16 flags, u8 sta_id, u8 tid, int cmd_id, int size, unsigned int timeout) { - struct iwl_txq *txq = NULL; + struct iwl_txq *txq; struct iwl_tx_queue_cfg_cmd cmd = { .flags = flags, .sta_id = sta_id, @@ -1203,9 +1201,9 @@ int iwl_txq_dyn_alloc(struct iwl_trans *trans, __le16 flags, u8 sta_id, u8 tid, }; int ret; - ret = iwl_txq_dyn_alloc_dma(trans, &txq, size, timeout); - if (ret) - return ret; + txq = iwl_txq_dyn_alloc_dma(trans, size, timeout); + if (IS_ERR(txq)) + return PTR_ERR(txq); cmd.tfdq_addr = cpu_to_le64(txq->dma_addr); cmd.byte_cnt_addr = cpu_to_le64(txq->bc_tbl.dma); -- 2.34.1