The "sta" variable is not checked for NULL consistently and it makes the
static checkers complain. I asked Christian Lamparter about this and
it turns out the check is not needed. "In fact, in order to set up a
ampdu session, the stack would call the driver's op_ampdu_action
callback which always needs a station."
I have removed the check.
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/drivers/net/wireless/ath/carl9170/tx.c b/drivers/net/wireless/ath/carl9170/tx.c
index 84377cf..23d33c3 100644
--- a/drivers/net/wireless/ath/carl9170/tx.c
+++ b/drivers/net/wireless/ath/carl9170/tx.c
@@ -1463,6 +1463,7 @@ void carl9170_op_tx(struct ieee80211_hw *hw,
struct ar9170 *ar = hw->priv;
struct ieee80211_tx_info *info;
struct ieee80211_sta *sta = control->sta;
+ struct carl9170_sta_info *stai;
bool run;
if (unlikely(!IS_STARTED(ar)))
@@ -1479,10 +1480,8 @@ void carl9170_op_tx(struct ieee80211_hw *hw,
* all ressouces which are associated with the frame.
*/
- if (sta) {
- struct carl9170_sta_info *stai = (void *) sta->drv_priv;
- atomic_inc(&stai->pending_frames);
- }
+ stai = (void *) sta->drv_priv;
+ atomic_inc(&stai->pending_frames);
if (info->flags & IEEE80211_TX_CTL_AMPDU) {
run = carl9170_tx_ampdu_queue(ar, sta, skb);
--
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