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wifi: ath11k: fix memory leak in ath11k_xxx_remove()

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[ Upstream commit efb24b1f0d29537714dd3cc46fb335ac27855251 ]

The firmware memory was allocated in ath11k_pci_probe() or
ath11k_ahb_probe(), but not freed in ath11k_xxx_remove() in case
ATH11K_FLAG_QMI_FAIL bit is set. So call ath11k_fw_destroy() to
free the memory.

Found while fixing the same problem in ath12k:
https://lore.kernel.org/linux-wireless/20240314012746.2729101-1-quic_miaoqing@quicinc.com

Tested-on: WCN6855 hw2.1 PCI WLAN.HSP.1.1-04546-QCAHSPSWPL_V1_V2_SILICONZ_IOE-1

Signed-off-by: Miaoqing Pan <quic_miaoqing@quicinc.com>
Reviewed-by: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com>
Link: https://patch.msgid.link/20250123084948.1124357-1-quic_miaoqing@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Miaoqing Pan
2025-01-23 16:49:48 +08:00
committed by Greg Kroah-Hartman
parent b92c5179db
commit a3981850f1
4 changed files with 8 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/wireless/ath/ath11k/ahb.c
View File

@@ -1,7 +1,7 @@
// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
* Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
* Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) 2022-2025 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#include <linux/module.h>
@@ -1290,6 +1290,7 @@ static void ath11k_ahb_remove(struct platform_device *pdev)
ath11k_core_deinit(ab);
qmi_fail:
ath11k_fw_destroy(ab);
ath11k_ahb_free_resources(ab);
}
@@ -1309,6 +1310,7 @@ static void ath11k_ahb_shutdown(struct platform_device *pdev)
ath11k_core_deinit(ab);
free_resources:
ath11k_fw_destroy(ab);
ath11k_ahb_free_resources(ab);
}

3
drivers/net/wireless/ath/ath11k/core.c
View File

@@ -1,7 +1,7 @@
// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
* Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
* Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) 2021-2025 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#include <linux/module.h>
@@ -2214,7 +2214,6 @@ void ath11k_core_deinit(struct ath11k_base *ab)
ath11k_hif_power_down(ab);
ath11k_mac_destroy(ab);
ath11k_core_soc_destroy(ab);
ath11k_fw_destroy(ab);
}
EXPORT_SYMBOL(ath11k_core_deinit);

3
drivers/net/wireless/ath/ath11k/fw.c
View File

@@ -1,6 +1,6 @@
// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
* Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) 2022-2025 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#include "core.h"
@@ -166,3 +166,4 @@ void ath11k_fw_destroy(struct ath11k_base *ab)
{
release_firmware(ab->fw.fw);
}
EXPORT_SYMBOL(ath11k_fw_destroy);

3
drivers/net/wireless/ath/ath11k/pci.c
View File

@@ -1,7 +1,7 @@
// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
* Copyright (c) 2019-2020 The Linux Foundation. All rights reserved.
* Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) 2021-2025 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#include <linux/module.h>
@@ -981,6 +981,7 @@ static void ath11k_pci_remove(struct pci_dev *pdev)
ath11k_core_deinit(ab);
qmi_fail:
ath11k_fw_destroy(ab);
ath11k_mhi_unregister(ab_pci);
ath11k_pcic_free_irq(ab);