iwlegacy: fix command queue timeout

iwlegacy version of fix:

commit 282cdb325aea4ebbc42ce753b47cc96145eb54bc

Author: Johannes Berg <[email protected]>
Date:   Mon Sep 12 12:09:10 2011 -0700

iwlagn: fix command queue timeout

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.

iwlegacy does not support P2P, but this patch fix possible unneeded hardware resets, hence is needed.

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

index 4fff995..4b4489f 100644
@@ -625,6 +625,8 @@ iwl_legacy_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
 	cmd = txq->cmd[cmd_index];
 	meta = &txq->meta[cmd_index];
 
+	txq->time_stamp = jiffies;
+
 	pci_unmap_single(priv->pci_dev,
 			 dma_unmap_addr(meta, mapping),
 			 dma_unmap_len(meta, len),

1.7.1