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ath9k: dynack: check da->enabled first in sampling routines

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commit 9d3d65a91f027b8a9af5e63752d9b78cb10eb92d upstream.

Check da->enabled flag first in ath_dynack_sample_tx_ts and
ath_dynack_sample_ack_ts routines in order to avoid useless
processing

Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lorenzo Bianconi 2018-11-02 21:49:57 +01:00 committed by Greg Kroah-Hartman
parent d2e843ea48
commit aa23996b28
1 changed files with 2 additions and 2 deletions
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4
drivers/net/wireless/ath/ath9k/dynack.c
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@ -184,7 +184,7 @@ void ath_dynack_sample_tx_ts(struct ath_hw *ah, struct sk_buff *skb,
struct ath_common *common = ath9k_hw_common(ah);
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
if ((info->flags & IEEE80211_TX_CTL_NO_ACK) || !da->enabled)
if (!da->enabled || (info->flags & IEEE80211_TX_CTL_NO_ACK))
return;
spin_lock_bh(&da->qlock);
@ -266,7 +266,7 @@ void ath_dynack_sample_ack_ts(struct ath_hw *ah, struct sk_buff *skb,
struct ath_common *common = ath9k_hw_common(ah);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
if (!ath_dynack_bssidmask(ah, hdr->addr1) || !da->enabled)
if (!da->enabled || !ath_dynack_bssidmask(ah, hdr->addr1))
return;
spin_lock_bh(&da->qlock);