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iwlegacy: fix command queue timeout

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iwlegacy version of fix:

commit 282cdb325a
Author: Johannes Berg <johannes.berg@intel.com>
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.

Cc: stable@kernel.org  # 2.6.39+
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Stanislaw Gruszka 2011-09-20 16:46:36 +02:00 committed by John W. Linville
parent e9f9530bb6
commit 2e2a41d6ca
1 changed files with 2 additions and 0 deletions
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2
drivers/net/wireless/iwlegacy/iwl-tx.c
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@ -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),