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[PATCH] iwlwifi: zero fill txq->txb on queue reset

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We allocate txq->txb area with kzalloc, but when reseting queue
during __iwl_down / __iwl_up we we leave old values, let's zero
initialize in such case as well.

Signed-off-by: Stanislaw Gruszka <sgruszka@xxxxxxxxxx>
---
 drivers/net/wireless/iwlwifi/iwl-tx.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index a8935cd..0c8555c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -418,6 +418,8 @@ void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 
 	if (txq_id == priv->cmd_queue)
 		actual_slots++;
+	else
+		memset(txq->txb, 0, sizeof(txq->txb[0]) * TFD_QUEUE_SIZE_MAX);
 
 	memset(txq->meta, 0, sizeof(struct iwl_cmd_meta) * actual_slots);
 
-- 
1.7.1

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