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rt2x00: Don't kill guardian_urb when it wasn't created 

This fixes a "BUG: unable to handle kernel paging request"
bug in rt73usb which was caused by killing the guardian_urb
while it had never been allocated for rt73usb.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ivo van Doorn 2008-06-03 20:29:50 +02:00 committed by John W. Linville
parent ec0a196626
commit edfa78b2ba
1 changed files with 6 additions and 0 deletions
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6
drivers/net/wireless/rt2x00/rt2x00usb.c
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@ -362,6 +362,12 @@ void rt2x00usb_disable_radio(struct rt2x00_dev *rt2x00dev)
}
}
/*
* Kill guardian urb (if required by driver).
*/
if (!test_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags))
return;
for (i = 0; i < rt2x00dev->bcn->limit; i++) {
priv_bcn = rt2x00dev->bcn->entries[i].priv_data;
usb_kill_urb(priv_bcn->urb);