From: Johannes Berg <johannes.berg@xxxxxxxxx>
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 <johannes.berg@xxxxxxxxx>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@xxxxxxxxx>
---
drivers/net/wireless/iwlwifi/iwl-tx.c | 5 +----
1 files changed, 1 insertions(+), 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;
}
--
1.7.0.4
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