| Message ID | 1248479845-22677-1-git-send-email-lrodriguez@atheros.com (mailing list archive) |
|---|---|
| State | Accepted, archived |
| Headers | show |
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 1b9e081..2cf9ff7 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1170,13 +1170,15 @@ static int __ieee80211_tx(struct ieee80211_local *local, } ret = drv_tx(local, skb); - info->control.vif = &sdata->vif; if (WARN_ON(ret != NETDEV_TX_OK && skb->len != len)) { dev_kfree_skb(skb); ret = NETDEV_TX_OK; } - if (ret != NETDEV_TX_OK) + if (ret != NETDEV_TX_OK) { + info->control.vif = &sdata->vif; return IEEE80211_TX_AGAIN; + } + *skbp = skb = next; ieee80211_led_tx(local, 1); fragm = true;
This was caused by patch: "mac80211: cooperate more with network namespaces" The version of the patch applied doesn't match Johannes' latest: http://johannes.sipsolutions.net/patches/kernel/all/LATEST/NNN-mac80211-netns.patch The skb->cb virtual interface data wasn't being reset for reuse so ath9k pooped out when trying to dereference the private rate control info from the skb. BUG: unable to handle kernel NULL pointer dereference RIP: 0010:[<ffffffffa0258173>] ath_tx_rc_status+0x33/0x150 [ath9k] <-- snip etc --> Reported-by: Davide Pesavento <davidepesa@gmail.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> --- net/mac80211/tx.c | 6 ++++-- 1 files changed, 4 insertions(+), 2 deletions(-)