[PATCH wireless] wifi: mac80211: do not pass a stopped vif to the driver in .get_txpower

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Avoid potentially crashing in the driver because of uninitialized private data

Fixes: 5b3dc42b1b0d ("mac80211: add support for driver tx power reporting")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Felix Fietkau <nbd@xxxxxxxx>
---
 net/mac80211/cfg.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 847304a3a29a..5f855e94aeb4 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -3138,7 +3138,8 @@ static int ieee80211_get_tx_power(struct wiphy *wiphy,
 	struct ieee80211_local *local = wiphy_priv(wiphy);
 	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 
-	if (local->ops->get_txpower)
+	if (local->ops->get_txpower &&
+	    (sdata->flags & IEEE80211_SDATA_IN_DRIVER))
 		return drv_get_txpower(local, sdata, dbm);
 
 	if (local->emulate_chanctx)
-- 
2.46.0





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