iwlegacy: always monitor for stuck queues

This is iwlegacy version of:

commit 342bbf3fee2fa9a18147e74b2e3c4229a4564912
Author: Johannes Berg <johannes.berg@intel.com>
Date:   Sun Mar 4 08:50:46 2012 -0800

    iwlwifi: always monitor for stuck queues

    If we only monitor while associated, the following
    can happen:
     - we're associated, and the queue stuck check
       runs, setting the queue "touch" time to X
     - we disassociate, stopping the monitoring,
       which leaves the time set to X
     - almost 2s later, we associate, and enqueue
       a frame
     - before the frame is transmitted, we monitor
       for stuck queues, and find the time set to
       X, although it is now later than X + 2000ms,
       so we decide that the queue is stuck and
       erroneously restart the device

Cc: stable@vger.kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/iwlegacy/common.c b/drivers/net/wireless/iwlegacy/common.c
index cbf2dc18341f58eec6141158e0c6d3aaad02d12b..5d4807c2b56d80aaafe47089a2498b29856ba40c 100644 (file)
--- a/drivers/net/wireless/iwlegacy/common.c
+++ b/drivers/net/wireless/iwlegacy/common.c
@@ -4767,14 +4767,12 @@ il_bg_watchdog(unsigned long data)
                return;
 
        /* monitor and check for other stuck queues */
-       if (il_is_any_associated(il)) {
-               for (cnt = 0; cnt < il->hw_params.max_txq_num; cnt++) {
-                       /* skip as we already checked the command queue */
-                       if (cnt == il->cmd_queue)
-                               continue;
-                       if (il_check_stuck_queue(il, cnt))
-                               return;
-               }
+       for (cnt = 0; cnt < il->hw_params.max_txq_num; cnt++) {
+               /* skip as we already checked the command queue */
+               if (cnt == il->cmd_queue)
+                       continue;
+               if (il_check_stuck_queue(il, cnt))
+                       return;
        }
 
        mod_timer(&il->watchdog,