diff options
| author | Sean Cross <sean@chumby.com> | 2009-11-05 20:22:03 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-11-06 15:14:02 -0500 |
| commit | 66f84d6594729c866c0c03fe97159a987dad7d84 (patch) | |
| tree | ab08abf4706b1095cc26b9b5366b86328b5ee02e /drivers/net/wireless/rt2x00/rt2x00link.c | |
| parent | 143d40f3ab8fbd8ca2fe712ec8e072d687142804 (diff) | |
| download | linux-66f84d6594729c866c0c03fe97159a987dad7d84.tar.gz linux-66f84d6594729c866c0c03fe97159a987dad7d84.tar.bz2 linux-66f84d6594729c866c0c03fe97159a987dad7d84.zip | |
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.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00link.c b/drivers/net/wireless/rt2x00/rt2x00link.c index c64db0ba7f40..c708d0be9155 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) |