wifi: rtw89: fix null pointer access when abort scan

During cancel scan we might use vif that weren't scanning.
Fix this by using the actual scanning vif.
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240119081501.25223-6-pkshih@realtek.com

drivers/net/wireless/realtek/rtw89/mac80211.c

@@ -441,7 +441,7 @@ static void rtw89_ops_bss_info_changed(struct ieee80211_hw *hw,
 			 * when disconnected by peer
 			 */
 			if (rtwdev->scanning)
-				rtw89_hw_scan_abort(rtwdev, vif);
+				rtw89_hw_scan_abort(rtwdev, rtwdev->scan_info.scanning_vif);
 		}
 	}
 
@@ -994,7 +994,7 @@ static int rtw89_ops_remain_on_channel(struct ieee80211_hw *hw,
 	}
 
 	if (rtwdev->scanning)
-		rtw89_hw_scan_abort(rtwdev, vif);
+		rtw89_hw_scan_abort(rtwdev, rtwdev->scan_info.scanning_vif);
 
 	if (type == IEEE80211_ROC_TYPE_MGMT_TX)
 		roc->state = RTW89_ROC_MGMT;