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| author | Johannes Berg <johannes@sipsolutions.net> | 2009-03-24 09:35:46 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-03-28 01:13:20 +0100 |
| commit | 4bbf4d56583dd52c429d88f43cb614bdbe5deea6 (patch) | |
| tree | 7a3f902a08820342254e0d67607fe870b02620b3 /drivers | |
| parent | mac80211: fix RX path (diff) | |
| download | linux-4bbf4d56583dd52c429d88f43cb614bdbe5deea6.tar.xz linux-4bbf4d56583dd52c429d88f43cb614bdbe5deea6.zip | |
cfg80211: fix locking in nl80211_set_wiphy
Luis reports that there's a circular locking dependency;
this is because cfg80211_dev_rename() will acquire the
cfg80211_mutex while the device mutex is held, while
this normally is done the other way around. The solution
is to open-code the device-getting in nl80211_set_wiphy
and require holding the mutex around cfg80211_dev_rename
rather than acquiring it within.
Also fix a bug -- rtnl locking is expected by drivers so
we need to provide it.
Reported-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions