From: Miaoqing Pan quic_miaoqing@quicinc.com
[ Upstream commit 1b24394ed5c8a8d8f7b9e3aa9044c31495d46f2e ]
Kmemleak reported this error:
unreferenced object 0xffff1c165cec3060 (size 32): comm "insmod", pid 560, jiffies 4296964570 (age 235.596s) backtrace: [<000000005434db68>] __kmem_cache_alloc_node+0x1f4/0x2c0 [<000000001203b155>] kmalloc_trace+0x40/0x88 [<0000000028adc9c8>] _request_firmware+0xb8/0x608 [<00000000cad1aef7>] firmware_request_nowarn+0x50/0x80 [<000000005011a682>] local_pci_probe+0x48/0xd0 [<00000000077cd295>] pci_device_probe+0xb4/0x200 [<0000000087184c94>] really_probe+0x150/0x2c0
The firmware memory was allocated in ath12k_pci_probe(), but not freed in ath12k_pci_remove() in case ATH12K_FLAG_QMI_FAIL bit is set. So call ath12k_fw_unmap() to free the memory.
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.2.0-02280-QCAHMTSWPL_V1.0_V2.0_SILICONZ-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/20250123080226.1116479-1-quic_miaoqing@quicinc.com Signed-off-by: Jeff Johnson jeff.johnson@oss.qualcomm.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath12k/pci.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/net/wireless/ath/ath12k/pci.c b/drivers/net/wireless/ath/ath12k/pci.c index bd269aa1740bc..2ff866e1d7d5b 100644 --- a/drivers/net/wireless/ath/ath12k/pci.c +++ b/drivers/net/wireless/ath/ath12k/pci.c @@ -1541,6 +1541,7 @@ static void ath12k_pci_remove(struct pci_dev *pdev) ath12k_core_deinit(ab);
qmi_fail: + ath12k_fw_unmap(ab); ath12k_mhi_unregister(ab_pci);
ath12k_pci_free_irq(ab);