diff options
| author | Larry Finger <Larry.Finger@lwfinger.net> | 2012-10-24 08:57:16 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-31 10:10:20 -0700 |
| commit | 4ade7d2eedda437e2197b57e449a308e06f9bb4d (patch) | |
| tree | 5f9a4ff134e9aa9ca12c0108e3da287e24a8019e /drivers/net/wireless/b43/main.c | |
| parent | cbc71967da7f3643d668a28b26d830e672891ab0 (diff) | |
b43: Fix oops on unload when firmware not found
commit f89ff6441df06abc2d95f3ef67525923032d6283 upstream.
When b43 fails to find firmware when loaded, a subsequent unload will
oops due to calling ieee80211_unregister_hw() when the corresponding
register call was never made.
Commit 2d838bb608e2d1f6cb4280e76748cb812dc822e7 fixed the same problem
for b43legacy.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Tested-by: Markus Kanet <dvmailing@gmx.eu>
Cc: Markus Kanet <dvmailing@gmx.eu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/wireless/b43/main.c')
| -rw-r--r-- | drivers/net/wireless/b43/main.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index a140165dfee0..46d9d4e513aa 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -5374,6 +5374,8 @@ static void b43_bcma_remove(struct bcma_device *core) cancel_work_sync(&wldev->restart_work); B43_WARN_ON(!wl); + if (!wldev->fw.ucode.data) + return; /* NULL if firmware never loaded */ if (wl->current_dev == wldev && wl->hw_registred) { b43_leds_stop(wldev); ieee80211_unregister_hw(wl->hw); @@ -5448,6 +5450,8 @@ static void b43_ssb_remove(struct ssb_device *sdev) cancel_work_sync(&wldev->restart_work); B43_WARN_ON(!wl); + if (!wldev->fw.ucode.data) + return; /* NULL if firmware never loaded */ if (wl->current_dev == wldev && wl->hw_registred) { b43_leds_stop(wldev); ieee80211_unregister_hw(wl->hw); |