diff options
| author | Vasanthakumar Thiagarajan <vasanth@atheros.com> | 2008-11-17 19:49:56 (GMT) |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-11-26 14:47:21 (GMT) |
| commit | 3fcdfb4b940a226184bc01bfc5c58b32b509b965 (patch) | |
| tree | 42d195eab18273deb3d81d91f6b289591ba59204 /drivers | |
| parent | 1548c86ab1552199a3b99b958ccfb590fc9c8f84 (diff) | |
| download | linux-3fcdfb4b940a226184bc01bfc5c58b32b509b965.tar.xz | |
ath9k: Fix panic while unregistering rfkill
[ 6133.670329] BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
[ 6133.672802] IP: [<ffffffffa030fcf6>] ieee80211_stop_queues+0x26/0x40 [mac80211]
[ 6133.672802] PGD 759dc067 PUD 74f1d067 PMD 0
[ 6133.672802] Oops: 0002 [#1] PREEMPT SMP
[ 6133.672802] last sysfs file: /sys/class/backlight/acpi_video0/brightness
[ 6133.672802] CPU 0
[ 6133.672802] Modules linked in: ath9k(-) mac80211 pciehp pci_hotplug arc4 ecb joydev pcmcia ppdev lp ppp_generic psmouse sg pcspkr s]
[ 6133.735830] Pid: 4445, comm: rmmod Tainted: G W 2.6.28-rc5-wl #1
[ 6133.735830] RIP: 0010:[<ffffffffa030fcf6>] [<ffffffffa030fcf6>] ieee80211_stop_queues+0x26/0x40 [mac80211]
[ 6133.735830] RSP: 0018:ffff88007d1efd10 EFLAGS: 00010246
[ 6133.735830] RAX: 0000000000000000 RBX: ffff880074f41aa0 RCX: 0000000000000000
[ 6133.735830] RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffff880074f40340
[ 6133.735830] RBP: ffff880074990000 R08: 0000000000000000 R09: 000000000000224d
[ 6133.735830] R10: 0000000000000000 R11: ffffffff8031dc70 R12: 0000000000000000
[ 6133.735830] R13: 0000000000000001 R14: ffff880074f46c9c R15: 0000000000000000
[ 6133.735830] FS: 00007f1e2e0bc6f0(0000) GS:ffffffff805e0b80(0000) knlGS:0000000000000000
[ 6133.735830] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 6133.735830] CR2: 0000000000000010 CR3: 0000000075593000 CR4: 00000000000006e0
[ 6133.735830] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 6133.735830] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 6133.735830] Process rmmod (pid: 4445, threadinfo ffff88007d1ee000, task ffff88007c0c8000)
[ 6133.735830] Stack:
[ 6133.735830] ffffffffa034d583 ffff88007c7d9410 ffff88007c7d9410 ffff88007c7d9410
[ 6133.735830] ffffffff80481dab ffff880074f41aa0 00000000fffffff0 0000000000000000
[ 6133.735830] 0000000000000001 0000000000000001 ffffffffa034d8a5 ffff88007c7d9400
[ 6133.735830] Call Trace:
[ 6133.735830] [<ffffffffa034d583>] ? ath_radio_disable+0x33/0x150 [ath9k]
[ 6133.735830] [<ffffffff80481dab>] ? __mutex_lock_slowpath+0x20b/0x2a0
[ 6133.735830] [<ffffffffa034d8a5>] ? ath_sw_toggle_radio+0x65/0xa0 [ath9k]
[ 6133.735830] [<ffffffffa019d1f4>] ? rfkill_toggle_radio+0x74/0x140 [rfkill]
[ 6133.735830] [<ffffffffa019d597>] ? rfkill_remove_switch+0x67/0x80 [rfkill]
[ 6133.735830] [<ffffffffa019d955>] ? rfkill_unregister+0x25/0x50 [rfkill]
[ 6133.735830] [<ffffffffa034bf75>] ? ath_detach+0xf5/0x140 [ath9k]
[ 6133.735830] [<ffffffffa034bfe9>] ? ath_pci_remove+0x29/0x80 [ath9k]
[ 6133.735830] [<ffffffff8035263c>] ? pci_device_remove+0x2c/0x60
[ 6133.735830] [<ffffffff803c3829>] ? __device_release_driver+0x99/0x100
[ 6133.735830] [<ffffffff803c3950>] ? driver_detach+0xc0/0xd0
[ 6133.735830] [<ffffffff803c296e>] ? bus_remove_driver+0x8e/0xd0
[ 6133.735830] [<ffffffff80352916>] ? pci_unregister_driver+0x36/0xa0
[ 6133.735830] [<ffffffffa0356ad4>] ? exit_ath_pci+0x10/0x29 [ath9k]
[ 6133.735830] [<ffffffff8026bb1b>] ? sys_delete_module+0x1cb/0x2d0
[ 6133.735830] [<ffffffff802960d9>] ? do_munmap+0x349/0x390
[ 6133.735830] [<ffffffff80342d01>] ? __up_write+0x21/0x150
[ 6133.735830] [<ffffffff8020c45b>] ? system_call_fastpath+0x16/0x1b
[ 6133.735830] Code: c3 0f 1f 40 00 0f b7 57 5e 0f b7 47 5c 01 c2 74 30 31 c9 66 90 48 8b 57 78 0f b7 c1 48 c1 e0 07 48 03 82 00 03 00
[ 6133.735830] RIP [<ffffffffa030fcf6>] ieee80211_stop_queues+0x26/0x40 [mac80211]
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/ath9k/main.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c index 3355ba4..4c2c58e 100644 --- a/drivers/net/wireless/ath9k/main.c +++ b/drivers/net/wireless/ath9k/main.c @@ -834,13 +834,13 @@ static void ath_detach(struct ath_softc *sc) DPRINTF(sc, ATH_DBG_CONFIG, "%s: Detach ATH hw\n", __func__); - ieee80211_unregister_hw(hw); - - ath_deinit_leds(sc); - #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) ath_deinit_rfkill(sc); #endif + ath_deinit_leds(sc); + + ieee80211_unregister_hw(hw); + ath_rate_control_unregister(); ath_rate_detach(sc->sc_rc); |