From f8d651a56ef5c9e26a1cddd4f169f5bf4f8dfa9b Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 22 Jun 2011 04:25:57 -0700 Subject: [PATCH] iwlagn: fix cmd queue unmap When we stop the device while a command is in flight that uses multiple TBs, we can leak the DMA buffers for the second and higher TBs. Fix this by using iwlagn_unmap_tfd() as we do when we normally recover the entry. Signed-off-by: Johannes Berg Signed-off-by: Wey-Yi Guy --- drivers/net/wireless/iwlwifi/iwl-tx.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c index fd8aee9..cf8fc9a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-tx.c @@ -309,10 +309,7 @@ void iwl_cmd_queue_unmap(struct iwl_priv *priv) i = get_cmd_index(q, q->read_ptr); if (txq->meta[i].flags & CMD_MAPPED) { - dma_unmap_single(priv->bus.dev, - dma_unmap_addr(&txq->meta[i], mapping), - dma_unmap_len(&txq->meta[i], len), - DMA_BIDIRECTIONAL); + iwlagn_unmap_tfd(priv, &txq->meta[i], &txq->tfds[i]); txq->meta[i].flags = 0; } -- 2.7.4