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iwlagn: fix bug in txq freeing

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The iwl_hw_txq_free_tfd() function can be
called from contexts with IRQs disabled,
so it must not call dev_kfree_skb() but
rather dev_kfree_skb_any() instead.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
This commit is contained in:
Johannes Berg 2010-05-17 02:37:32 -07:00 committed by Reinette Chatre
parent 4f5fa2376f
commit 6f80240e0a
1 changed files with 9 additions and 2 deletions
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11
drivers/net/wireless/iwlwifi/iwl-agn.c
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@ -484,8 +484,15 @@ void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
iwl_tfd_tb_get_len(tfd, i), PCI_DMA_TODEVICE);
if (txq->txb) {
dev_kfree_skb(txq->txb[txq->q.read_ptr].skb[i - 1]);
txq->txb[txq->q.read_ptr].skb[i - 1] = NULL;
struct sk_buff *skb;
skb = txq->txb[txq->q.read_ptr].skb[i - 1];
/* can be called from irqs-disabled context */
if (skb) {
dev_kfree_skb_any(skb);
txq->txb[txq->q.read_ptr].skb[i - 1] = NULL;
}
}
}
}