[PATCH_3.1] iwlagn: fix command queue timeout

From: Johannes Berg <redacted>

If the command queue is constantly busy,
which can happen in P2P, the hangcheck
timer will frequently find a command in
it and will eventually reset the device
because nothing sets the timestamp for
this queue when commands are processed.

Fix this by setting the timestamp when
a command completes.

Cc: stable@kernel.org #2.6.39, #3.0.0 #3.1.0
Signed-off-by: Johannes Berg <redacted>
SIgned-off-by: Wey-Yi Guy <redacted>
---
these patches are also available from wireless-2.6 branch on
 git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-2.6.git

 drivers/net/wireless/iwlwifi/iwl-trans-pcie-tx.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-pcie-tx.c b/drivers/net/wireless/iwlwifi/iwl-trans-pcie-tx.c
index c0def8e..49431ed 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie-tx.c

@@ -928,6 +928,8 @@ void iwl_tx_cmd_complete(struct iwl_trans *trans, struct iwl_rx_mem_buffer *rxb)
 	cmd = txq->cmd[cmd_index];
 	meta = &txq->meta[cmd_index];
 
+	txq->time_stamp = jiffies;
+
 	iwlagn_unmap_tfd(trans, meta, &txq->tfds[index],
 			 DMA_BIDIRECTIONAL);
 

-- 
1.7.0.4