Merge branch 'docs-security' into docs-move

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 17d04ff8d678..1482fa650833 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -2141,6 +2141,8 @@ static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class)
 static void ath9k_flush(struct ieee80211_hw *hw, bool drop)
 {
         struct ath_softc *sc = hw->priv;
+        struct ath_hw *ah = sc->sc_ah;
+        struct ath_common *common = ath9k_hw_common(ah);
         int timeout = 200; /* ms */
         int i, j;
 
@@ -2149,6 +2151,12 @@ static void ath9k_flush(struct ieee80211_hw *hw, bool drop)
 
         cancel_delayed_work_sync(&sc->tx_complete_work);
 
+        if (sc->sc_flags & SC_OP_INVALID) {
+                ath_dbg(common, ATH_DBG_ANY, "Device not present\n");
+                mutex_unlock(&sc->mutex);
+                return;
+        }
+
         if (drop)
                 timeout = 1;