6.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Zong-Zhe Yang <kevin_yang@xxxxxxxxxxx> [ Upstream commit bb38626f3f97e16e6d368a9ff6daf320f3fe31d9 ] We have some policy via BIOS to block uses of 6 GHz. In this case, 6 GHz sband will be NULL even if it is WiFi 7 chip. So, add NULL handling here to avoid crash. Signed-off-by: Zong-Zhe Yang <kevin_yang@xxxxxxxxxxx> Signed-off-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx> Link: https://msgid.link/20240412115729.8316-3-pkshih@xxxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/net/wireless/realtek/rtw89/fw.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/wireless/realtek/rtw89/fw.c b/drivers/net/wireless/realtek/rtw89/fw.c index 6c75ebbb21caa..ef86389545ffb 100644 --- a/drivers/net/wireless/realtek/rtw89/fw.c +++ b/drivers/net/wireless/realtek/rtw89/fw.c @@ -4646,6 +4646,10 @@ static void rtw89_scan_get_6g_disabled_chan(struct rtw89_dev *rtwdev, u8 i, idx; sband = rtwdev->hw->wiphy->bands[NL80211_BAND_6GHZ]; + if (!sband) { + option->prohib_chan = U64_MAX; + return; + } for (i = 0; i < sband->n_channels; i++) { chan = &sband->channels[i]; -- 2.43.0
