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libertas: terminate scan when stopping interface

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There are currently no provisions in place to ensure that the scanning
task has been stopped when the interface is stopped or removed.

This can result in a WARNING at net/wireless/core.c:643 and other badness
when you remove the module while a scan is happening.

Terminate the scanning task during interface stop.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Daniel Drake
2010-11-04 21:21:52 +00:00
committed by John W. Linville
parent 352ffad646
commit 2e30168ba7
3 changed files with 11 additions and 2 deletions
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5
drivers/net/wireless/libertas/cfg.c
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@@ -700,8 +700,9 @@ static void lbs_scan_worker(struct work_struct *work)
if (priv->scan_channel < priv->scan_req->n_channels) {
cancel_delayed_work(&priv->scan_work);
queue_delayed_work(priv->work_thread, &priv->scan_work,
msecs_to_jiffies(300));
if (!priv->stopping)
queue_delayed_work(priv->work_thread, &priv->scan_work,
msecs_to_jiffies(300));
}
/* This is the final data we are about to send */