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wifi: rtw89: fw: scan offload prohibit all 6 GHz channel if no 6 GHz sband

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[ Upstream commit bb38626f3f ]

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@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/20240412115729.8316-3-pkshih@realtek.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Zong-Zhe Yang
2024-04-12 19:57:23 +08:00
committed by Greg Kroah-Hartman
parent 6393ffc888
commit ce4ba62f8b
1 changed files with 4 additions and 0 deletions
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4
drivers/net/wireless/realtek/rtw89/fw.c
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@@ -4646,6 +4646,10 @@ static void rtw89_scan_get_6g_disabled_chan(struct rtw89_dev *rtwdev,
u8 i, idx; u8 i, idx;
sband = rtwdev->hw->wiphy->bands[NL80211_BAND_6GHZ]; sband = rtwdev->hw->wiphy->bands[NL80211_BAND_6GHZ];
if (!sband) {
option->prohib_chan = U64_MAX;
return;
}
for (i = 0; i < sband->n_channels; i++) { for (i = 0; i < sband->n_channels; i++) {
chan = &sband->channels[i]; chan = &sband->channels[i];