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[2/2] wifi: mac80211: clarify vif handling in TX dequeue

Message ID 20240131164910.60066625a239.Idfb6a5a9876f9f631eae760055e1c4018259a971@changeid
State New
Headers show
Series [1/2] wifi: mac80211: reload info pointer in ieee80211_tx_dequeue() | expand

Commit Message

Johannes Berg Jan. 31, 2024, 3:49 p.m. UTC 
From: Johannes Berg <johannes.berg@intel.com>

The vif pointer at least looks like it can actually be NULL
in some cases such as the monitor-mode vif, causing static
checkers to complain with the immediate derefence. In these
cases the sta pointer will also be NULL, but clarify it in
the code anyway.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/tx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index c2e4ef327377..c3e67e40dc9a 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -3954,7 +3954,8 @@  struct sk_buff *ieee80211_tx_dequeue(struct ieee80211_hw *hw,
 			ieee80211_free_txskb(&local->hw, skb);
 			goto begin;
 		} else {
-			vif = NULL;
+			info->control.vif = NULL;
+			return skb;
 		}
 		break;
 	case NL80211_IFTYPE_AP_VLAN: