From: Zong-Zhe Yang <kevin_yang@xxxxxxxxxxx>
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>
---
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 74d0d515ada0..d9ab781fa0e6 100644
--- a/drivers/net/wireless/realtek/rtw89/fw.c
+++ b/drivers/net/wireless/realtek/rtw89/fw.c
@@ -4689,6 +4689,10 @@ 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];
--
2.25.1
