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authorEmmanuel Grumbach <emmanuel.grumbach@intel.com>2012-10-18 12:38:37 +0200
committerJohannes Berg <johannes.berg@intel.com>2012-10-23 15:24:19 +0200
commit6c3fd3f00c67105b49d57525614fcfa6816d604d (patch)
treea93ab28fa107a3fc2971e21064460ffa62bdbfb8 /drivers/net/wireless/iwlwifi
parent4e760f1ab267edcd6e4b232ff732fc9cdc659ebb (diff)
iwlwifi: don't leak Tx skb when a queue is disabled
Since the queue might not be empty, we need to free the pending Tx packets. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi')
-rw-r--r--drivers/net/wireless/iwlwifi/pcie/internal.h1
-rw-r--r--drivers/net/wireless/iwlwifi/pcie/trans.c4
-rw-r--r--drivers/net/wireless/iwlwifi/pcie/tx.c2
3 files changed, 5 insertions, 2 deletions
diff --git a/drivers/net/wireless/iwlwifi/pcie/internal.h b/drivers/net/wireless/iwlwifi/pcie/internal.h
index 401178f44a3..6ce58f03bc5 100644
--- a/drivers/net/wireless/iwlwifi/pcie/internal.h
+++ b/drivers/net/wireless/iwlwifi/pcie/internal.h
@@ -346,6 +346,7 @@ void iwl_txq_free_tfd(struct iwl_trans *trans, struct iwl_tx_queue *txq,
enum dma_data_direction dma_dir);
int iwl_tx_queue_reclaim(struct iwl_trans *trans, int txq_id, int index,
struct sk_buff_head *skbs);
+void iwl_tx_queue_unmap(struct iwl_trans *trans, int txq_id);
int iwl_queue_space(const struct iwl_queue *q);
/*****************************************************
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index f95d88df777..a6a518116c7 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -442,10 +442,10 @@ static int iwl_trans_txq_init(struct iwl_trans *trans, struct iwl_tx_queue *txq,
return 0;
}
-/**
+/*
* iwl_tx_queue_unmap - Unmap any remaining DMA mappings and free skb's
*/
-static void iwl_tx_queue_unmap(struct iwl_trans *trans, int txq_id)
+void iwl_tx_queue_unmap(struct iwl_trans *trans, int txq_id)
{
struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
struct iwl_tx_queue *txq = &trans_pcie->txq[txq_id];
diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c
index db3efbb84d9..5db03145186 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -494,6 +494,8 @@ void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int txq_id)
_iwl_write_targ_mem_dwords(trans, stts_addr,
zero_val, ARRAY_SIZE(zero_val));
+ iwl_tx_queue_unmap(trans, txq_id);
+
IWL_DEBUG_TX_QUEUES(trans, "Deactivate queue %d\n", txq_id);
}