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authorVasanthakumar Thiagarajan <vasanth@atheros.com>2009-02-16 13:55:07 +0530
committerJohn W. Linville <linville@tuxdriver.com>2009-02-23 13:17:51 -0500
commit40b130a947672d0ca886b718bfc4bd7641b6b39d (patch)
treeeca2c89495208a1046bb0073e941f7e739d40924 /drivers/net/wireless
parent5c138dcee7d4a9e68cce546a45968bbf5dbfce80 (diff)
ath9k: Fix panic upon attach failure
[246916.338046] [246916.338048] Pid: 29265, comm: insmod Not tainted (2.6.29-rc4-wl #64) 9461DUU [246916.338051] EIP: 0060:[<c02ca274>] EFLAGS: 00010202 CPU: 0 [246916.338055] EIP is at rollback_registered+0x24/0x220 [246916.338057] EAX: 00000001 EBX: 00000000 ECX: 00000000 EDX: f122e8fc [246916.338059] ESI: 00000000 EDI: 00000000 EBP: f6595d30 ESP: f6595d1c [246916.338062] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 [246916.338064] Process insmod (pid: 29265, ti=f6594000 task=f7343fe0 task.ti=f6594000) [246916.338067] Stack: [246916.338068] c04a2920 22222222 f6595d48 00000000 f122f080 f6595d48 c02ca489 f122e8fc [246916.338076] f122e220 f122f080 f122e220 f6595d5c f8a03156 f122e220 f122f080 f122e220 [246916.338085] f6595d80 f87359af f122f080 00002000 f874e129 f122f150 f122f080 f6290000 [246916.338094] Call Trace: [246916.338096] [<c02ca489>] ? unregister_netdevice+0x19/0x70 [246916.338100] [<f8a03156>] ? ieee80211_unregister_hw+0x36/0xd0 [mac80211] [246916.338112] [<f87359af>] ? ath_detach+0xcf/0x250 [ath9k] [246916.338127] [<f8735d9c>] ? ath_attach+0x26c/0x740 [ath9k] [246916.338139] [<f873c33a>] ? ath_pci_probe+0x13a/0x310 [ath9k] [246916.338151] [<c0233e28>] ? _raw_spin_unlock+0x68/0x80 [246916.338158] [<c023ab8e>] ? local_pci_probe+0xe/0x10 [246916.338162] [<c023b8e0>] ? pci_device_probe+0x60/0x80 [246916.338169] [<c029e042>] ? driver_probe_device+0x82/0x1b0 [246916.338174] [<c029e1f9>] ? __driver_attach+0x89/0x90 [246916.338180] [<c029d97b>] ? bus_for_each_dev+0x4b/0x70 [246916.338184] [<c023b820>] ? pci_device_remove+0x0/0x40 [246916.338190] [<c029ded9>] ? driver_attach+0x19/0x20 [246916.338193] [<c029e170>] ? __driver_attach+0x0/0x90 [246916.338197] [<c029d317>] ? bus_add_driver+0x1b7/0x230 [246916.338203] [<c023b820>] ? pci_device_remove+0x0/0x40 [246916.338206] [<c029e399>] ? driver_register+0x69/0x140 [246916.338212] [<f859d000>] ? ath9k_init+0x0/0x54 [ath9k] [246916.338221] [<c023bb4e>] ? __pci_register_driver+0x4e/0x90 [246916.338225] [<f859d000>] ? ath9k_init+0x0/0x54 [ath9k] [246916.338232] [<f859d06b>] ? ath_pci_init+0x17/0x19 [ath9k] [246916.338238] [<f859d017>] ? ath9k_init+0x17/0x54 [ath9k] [246916.338245] [<c017148e>] ? tracepoint_update_probe_range+0x7e/0xb0 [246916.338249] [<c010111a>] ? do_one_initcall+0x2a/0x170 [246916.338252] [<c0149f26>] ? up_read+0x16/0x30 [246916.338256] [<c014aa9d>] ? __blocking_notifier_call_chain+0x4d/0x60 [246916.338265] [<c0162b1a>] ? sys_init_module+0x8a/0x1c0 [246916.338269] [<c022f888>] ? trace_hardirqs_on_thunk+0xc/0x10 [246916.338272] [<c0103ebf>] ? sysenter_do_call+0x12/0x43 [246916.338276] Code: 8d bc 27 00 00 00 00 55 89 e5 56 89 c6 53 83 ec 0c a1 74 27 4a c0 85 c0 0f 85 4b 01 00 00 e8 04 7d 00 00 85 c0 0f 84 c9 01 00 00 <8b> 86 18 03 00 00 85 c0 0f 84 86 01 00 00 83 e8 01 0f 85 71 01 [246916.338328] EIP: [<c02ca274>] rollback_registered+0x24/0x220 SS:ESP 0068:f6595d1c [246916.338335] ---[ end trace 76357c56a75ea34e ]--- Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/ath9k/main.c24
1 files changed, 17 insertions, 7 deletions
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 727f067aca4..0e80990d8e8 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -1538,6 +1538,7 @@ bad2:
bad:
if (ah)
ath9k_hw_detach(ah);
+ ath9k_exit_debug(sc);
return error;
}
@@ -1545,7 +1546,7 @@ bad:
static int ath_attach(u16 devid, struct ath_softc *sc)
{
struct ieee80211_hw *hw = sc->hw;
- int error = 0;
+ int error = 0, i;
DPRINTF(sc, ATH_DBG_CONFIG, "Attach ATH hw\n");
@@ -1589,11 +1590,11 @@ static int ath_attach(u16 devid, struct ath_softc *sc)
/* initialize tx/rx engine */
error = ath_tx_init(sc, ATH_TXBUF);
if (error != 0)
- goto detach;
+ goto error_attach;
error = ath_rx_init(sc, ATH_RXBUF);
if (error != 0)
- goto detach;
+ goto error_attach;
#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
/* Initialze h/w Rfkill */
@@ -1601,8 +1602,9 @@ static int ath_attach(u16 devid, struct ath_softc *sc)
INIT_DELAYED_WORK(&sc->rf_kill.rfkill_poll, ath_rfkill_poll);
/* Initialize s/w rfkill */
- if (ath_init_sw_rfkill(sc))
- goto detach;
+ error = ath_init_sw_rfkill(sc);
+ if (error)
+ goto error_attach;
#endif
error = ieee80211_register_hw(hw);
@@ -1611,8 +1613,16 @@ static int ath_attach(u16 devid, struct ath_softc *sc)
ath_init_leds(sc);
return 0;
-detach:
- ath_detach(sc);
+
+error_attach:
+ /* cleanup tx queues */
+ for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
+ if (ATH_TXQ_SETUP(sc, i))
+ ath_tx_cleanupq(sc, &sc->tx.txq[i]);
+
+ ath9k_hw_detach(sc->sc_ah);
+ ath9k_exit_debug(sc);
+
return error;
}