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authorJohannes Berg <johannes.berg@intel.com>2011-06-27 16:48:52 +0200
committerWey-Yi Guy <wey-yi.w.guy@intel.com>2011-06-27 16:50:45 +0200
commit1107a08a1a3e0f54d535d37ee0c4192acce6a7f3 (patch)
tree5ed58ab5a2665e9568dcea8fb00934c30c4fdb27 /drivers
parentiwlagn: fix change_interface for P2P types (diff)
downloadlinux-1107a08a1a3e0f54d535d37ee0c4192acce6a7f3.tar.xz
linux-1107a08a1a3e0f54d535d37ee0c4192acce6a7f3.zip
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 <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-tx.c5
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 157a642a5436..8f20065e6dac 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -310,10 +310,7 @@ void iwl_cmd_queue_unmap(struct iwl_priv *priv)
i = get_cmd_index(q, q->read_ptr);
if (txq->meta[i].flags & CMD_MAPPED) {
- pci_unmap_single(priv->pci_dev,
- dma_unmap_addr(&txq->meta[i], mapping),
- dma_unmap_len(&txq->meta[i], len),
- PCI_DMA_BIDIRECTIONAL);
+ iwlagn_unmap_tfd(priv, &txq->meta[i], &txq->tfds[i]);
txq->meta[i].flags = 0;
}