Commit c42c2b82 authored by Wen Gong's avatar Wen Gong Committed by Kalle Valo
Browse files

wifi: ath12k: fix invalid m3 buffer address 



This is to fix m3 buffer reuse issue as m3_mem->size isn't set to
zero in the free function, which leads invalid m3 downloading to
firmware and firmware crashing.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4

Signed-off-by: default avatarWen Gong <quic_wgong@quicinc.com>
Signed-off-by: default avatarKalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230721055305.20420-4-quic_wgong@quicinc.com
parent 92448f87

drivers/net/wireless/ath/ath12k/qmi.c

+1 −0
Original line number Diff line number Diff line
@@ -2540,6 +2540,7 @@ static void ath12k_qmi_m3_free(struct ath12k_base *ab) 
	dma_free_coherent(ab->dev, m3_mem->size,

			  m3_mem->vaddr, m3_mem->paddr);

	m3_mem->vaddr = NULL;

	m3_mem->size = 0;

}



static int ath12k_qmi_wlanfw_m3_info_send(struct ath12k_base *ab)