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mac80211_hwsim: fix memory leak on netlink TX failure 

If the packet can't be delivered to userspace (at all or
quickly enough) then it can leak - fix that.

Signed-off-by: Ben Greear <greearb@candelatech.com>
[rewrite commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Ben Greear 2014-09-25 14:22:18 -07:00 committed by Johannes Berg
parent 35a9ad8af0
commit b7bc9679e4
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/mac80211_hwsim.c
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@ -862,7 +862,7 @@ static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
/* Droping until WARN_QUEUE level */
while (skb_queue_len(&data->pending) >= WARN_QUEUE)
skb_dequeue(&data->pending);
ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
}
skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
@ -921,6 +921,7 @@ static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
nla_put_failure:
printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
ieee80211_free_txskb(hw, my_skb);
}
static bool hwsim_chans_compat(struct ieee80211_channel *c1,