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wireless: rtl8852bs: fix oops in rtw_phl_cmd_scan_request() during

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suspend

Unable to handle kernel NULL pointer dereference at virtual address 0000000000000169
Oops [#1]
Modules linked in: algif_hash
 algif_skcipher af_alg 8852bs binfmt_misc sch_fq_codel ip_tables autofs4
CPU: 5 PID: 1001 Comm: fsm_thread Tainted: G        W          6.6.63 #20250623142956
Hardware name: spacemit k1-x deb1 board (DT)
epc : rtw_phl_cmd_scan_request+0x24/0x98c [8852bs]
 ra : rtw_sitesurvey_cmd+0x3e8/0x67a [8852bs]
epc : ffffffff0237dc42 ra : ffffffff022fa748 sp : ffffffc80939ba00
 gp : ffffffff820fac50 tp : ffffffd905ff8c80 t0 : ffffffc80939baa8
 t1 : 0000000000000001 t2 : 4f525245203a5754 s0 : ffffffc80939bae0
 s1 : ffffffc80926e18c a0 : ffffffc80063d000 a1 : ffffffd904328000
 a2 : 0000000000000010 a3 : 0000000000006312 a4 : 0000000000000000
 a5 : 0000000000000000 a6 : 0000000000000000 a7 : ffffffff8213c7b8
 s2 : ffffffc80926d048 s3 : ffffffd904328000 s4 : ffffffff026b8c08
 s5 : ffffffd907830000 s6 : 0000000000000000 s7 : 0000000000000070
 s8 : 0000000000000001 s9 : ffffffff026b7fd8 s10: ffffffd907837a78
 s11: ffffffd92c6dfe00 t3 : ffffffff82112ba7 t4 : ffffffff82112ba7
 t5 : ffffffff82112ba8 t6 : ffffffd9078300aa
status: 0000000200000120 badaddr: 0000000000000169 cause: 000000000000000d
[<ffffffff0237dc42>] rtw_phl_cmd_scan_request+0x24/0x98c [8852bs]
[<ffffffff022fa748>] rtw_sitesurvey_cmd+0x3e8/0x67a [8852bs]
[<ffffffff0227ba34>] rrm_sitesurvey.constprop.0.isra.0+0xd2/0x19e [8852bs]
[<ffffffff0227f760>] rrm_do_meas_st_hdl+0x10a/0x30c [8852bs]
[<ffffffff0227875c>] fsm_state_run.isra.0+0x66/0x128 [8852bs]
[<ffffffff022794ee>] fsm_state_goto+0x50/0x13c [8852bs]
[<ffffffff0227f482>] rrm_idle_st_hdl+0x2e2/0x356 [8852bs]
[<ffffffff0227875c>] fsm_state_run.isra.0+0x66/0x128 [8852bs]
[<ffffffff02278b9c>] fsm_thread_share+0x37e/0x478 [8852bs]
[<ffffffff8003ea76>] kthread+0xda/0xf6
[<ffffffff80fde1ce>] ret_from_fork+0xe/0x18
Code: f556 1180 b703 1c05 ba17 0033 0a13 fd2a 2783 000a (4703) 1697

Change-Id: I0ae3eca28216f31824767ff4ba6eacc637be1537
Signed-off-by: wanlong <long.wan@spacemit.com>
This commit is contained in:
wanlong
2025-06-30 13:51:09 +08:00
committed by 张猛
parent 9cc34aec3f
commit bf34673bce
1 changed files with 5 additions and 0 deletions
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5
drivers/net/wireless/realtek/rtl8852bs/core/rtw_scan.c
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@@ -1990,6 +1990,11 @@ static struct rtw_phl_scan_param *_alloc_phl_param(_adapter *adapter, u8 scan_ch
struct rtw_phl_scan_param *phl_param = NULL;
struct scan_priv *scan_priv = NULL;
if (adapter->phl_role == NULL) {
RTW_ERR(FUNC_ADPT_FMT" phl_role == NULL\n", FUNC_ADPT_ARG(adapter));
goto _err_exit;
}
if (scan_ch_num == 0) {
RTW_ERR("%s scan_ch_num = 0\n", __func__);
goto _err_exit;