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authorSean Cross <sean@chumby.com>2009-11-05 20:22:03 +0100
committerJohn W. Linville <linville@tuxdriver.com>2009-11-06 15:14:02 -0500
commit66f84d6594729c866c0c03fe97159a987dad7d84 (patch)
treeab08abf4706b1095cc26b9b5366b86328b5ee02e /drivers/net/wireless/rt2x00/rt2x00link.c
parent143d40f3ab8fbd8ca2fe712ec8e072d687142804 (diff)
rt2x00: Don't queue ieee80211 work after USB removal
This prevents the rt2x00 driver from queueing ieee80211 work after the   USB card has been removed, preventing a kernel panic. Signed-off-by: Sean Cross <sean@chumby.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00link.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00link.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00link.c b/drivers/net/wireless/rt2x00/rt2x00link.c
index c64db0ba7f4..c708d0be915 100644
--- a/drivers/net/wireless/rt2x00/rt2x00link.c
+++ b/drivers/net/wireless/rt2x00/rt2x00link.c
@@ -362,8 +362,9 @@ void rt2x00link_start_tuner(struct rt2x00_dev *rt2x00dev)
rt2x00link_reset_tuner(rt2x00dev, false);
- ieee80211_queue_delayed_work(rt2x00dev->hw,
- &link->work, LINK_TUNE_INTERVAL);
+ if (test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
+ ieee80211_queue_delayed_work(rt2x00dev->hw,
+ &link->work, LINK_TUNE_INTERVAL);
}
void rt2x00link_stop_tuner(struct rt2x00_dev *rt2x00dev)
@@ -469,8 +470,10 @@ static void rt2x00link_tuner(struct work_struct *work)
* Increase tuner counter, and reschedule the next link tuner run.
*/
link->count++;
- ieee80211_queue_delayed_work(rt2x00dev->hw,
- &link->work, LINK_TUNE_INTERVAL);
+
+ if (test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
+ ieee80211_queue_delayed_work(rt2x00dev->hw,
+ &link->work, LINK_TUNE_INTERVAL);
}
void rt2x00link_register(struct rt2x00_dev *rt2x00dev)