diff options
| author | Oleksij Rempel <bug-track@fisher-privat.net> | 2012-06-05 20:39:32 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-06-08 13:47:06 -0400 |
| commit | e64add27e1b4874f589e550b4e0ca6715070373f (patch) | |
| tree | 946313bd3ce6f26c150266d974921b64c1407b58 /drivers/net/wireless/b43/b43.h | |
| parent | d2c8b15d0cb486f4938ba7f2af349d9d1220cb10 (diff) | |
b43: do not call ieee80211_unregister_hw if we are not registred
this patch fixes kernel Oops on "rmmod b43" if firmware was not loaded:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000088
IP: [<ffffffff8104e988>] drain_workqueue+0x25/0x142
PGD 153ac6067 PUD 153b82067 PMD 0
Oops: 0000 [#1] SMP
Signed-off-by: Oleksij Rempel <bug-track@fisher-privat.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/b43/b43.h')
| -rw-r--r-- | drivers/net/wireless/b43/b43.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h index 67c13af6f206..c06b6cb5c91e 100644 --- a/drivers/net/wireless/b43/b43.h +++ b/drivers/net/wireless/b43/b43.h @@ -877,6 +877,10 @@ struct b43_wl { * from the mac80211 subsystem. */ u16 mac80211_initially_registered_queues; + /* Set this if we call ieee80211_register_hw() and check if we call + * ieee80211_unregister_hw(). */ + bool hw_registred; + /* We can only have one operating interface (802.11 core) * at a time. General information about this interface follows. */ |