diff options
| author | Luis R. Rodriguez <lrodriguez@atheros.com> | 2008-11-14 14:44:22 -0800 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-11-25 16:41:40 -0500 |
| commit | 4ada424db196c78746fec255d493cacb1c9feddf (patch) | |
| tree | 8fc36e480aa46b8cfebd6aff95b8d1a40b910f33 /net/mac80211/main.c | |
| parent | 4d3601b234a51fdd268c8ef8068d239e26dd7ef1 (diff) | |
| download | lwn-4ada424db196c78746fec255d493cacb1c9feddf.tar.gz lwn-4ada424db196c78746fec255d493cacb1c9feddf.zip | |
mac80211: don't assume driver has been attached on registration
mac80211's ieee80211_register_hw() is often called within the
probe path so it cannot assume the device's driver structure
has been attached yet so to create a workqueue instead of
using driver->name use the wiphy's phy%d name. The name doesn't
really matter anyway.
This should fix sporadic oopses found when we race to beat the
driver pointer setting. Not even sure how this was working properly.
http://www.kerneloops.org/search.php?search=ieee80211_register_hw
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/main.c')
| -rw-r--r-- | net/mac80211/main.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/net/mac80211/main.c b/net/mac80211/main.c index d631dc96c323..cec9b6d3e1ce 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -722,7 +722,6 @@ EXPORT_SYMBOL(ieee80211_alloc_hw); int ieee80211_register_hw(struct ieee80211_hw *hw) { struct ieee80211_local *local = hw_to_local(hw); - const char *name; int result; enum ieee80211_band band; struct net_device *mdev; @@ -787,8 +786,8 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) mdev->header_ops = &ieee80211_header_ops; mdev->set_multicast_list = ieee80211_master_set_multicast_list; - name = wiphy_dev(local->hw.wiphy)->driver->name; - local->hw.workqueue = create_freezeable_workqueue(name); + local->hw.workqueue = + create_freezeable_workqueue(wiphy_name(local->hw.wiphy)); if (!local->hw.workqueue) { result = -ENOMEM; goto fail_workqueue; |