From: Chih-Kang Chang <gary.chang@xxxxxxxxxxx>
Applying SAR will access hal data, it should hold rtwdev::mutex
to avoid hal data changed during setting flow.
Signed-off-by: Chih-Kang Chang <gary.chang@xxxxxxxxxxx>
Signed-off-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
---
drivers/net/wireless/realtek/rtw88/mac80211.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/wireless/realtek/rtw88/mac80211.c b/drivers/net/wireless/realtek/rtw88/mac80211.c
index e0fdb34217000..2fa94c3024417 100644
--- a/drivers/net/wireless/realtek/rtw88/mac80211.c
+++ b/drivers/net/wireless/realtek/rtw88/mac80211.c
@@ -873,7 +873,9 @@ static int rtw_ops_set_sar_specs(struct ieee80211_hw *hw,
{
struct rtw_dev *rtwdev = hw->priv;
+ mutex_lock(&rtwdev->mutex);
rtw_set_sar_specs(rtwdev, sar);
+ mutex_unlock(&rtwdev->mutex);
return 0;
}
--
2.25.1
