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Luis R. Rodriguez 558f6d3229 cfg80211: fix for duplicate response for driver reg request 
As Pavel puts userspace can be stupid and should not
cause kernel crashes. In this case Pavel was able to
find a crash here but unable to reproduce. Either way
lets deal with this.

This should fix:

------------[ cut here ]------------
kernel BUG at /home/proski/src/linux-2.6/net/wireless/reg.c:2132!
Oops: Exception in kernel mode, sig: 5 [#1]
PowerMac
Modules linked in: ath5k ath [last unloaded: scsi_wait_scan]
NIP: c02f3eac LR: c02f3d08 CTR: 00000000
REGS: ef107aa0 TRAP: 0700   Not tainted  (2.6.30-rc8-wl)
MSR: 00029032 <EE,ME,CE,IR,DR>  CR: 88002442  XER: 20000000
TASK = ef84acb0[834] 'crda' THREAD: ef106000
GPR00: ef953840 ef107b50 ef84acb0 ef1380bc 00000006 c035a5c8 ef107b90 c035a5c8
GPR08: 00080005 efb68980 c0445628 ef130004 28002422 10019ce0 10012d3c 00000001
GPR16: 1070b2ac 00000005 48023558 1070b380 4802304c 00000000 ef107ddc c035a5c8
GPR24: ef107b78 c0443350 ef8bcb00 00000005 ef138080 c04a6a70 c04a0000 ef8bcb00
NIP [c02f3eac] set_regdom+0x4c4/0x4ec
LR [c02f3d08] set_regdom+0x320/0x4ec
Call Trace:
[ef107b50] [c02f3d08] set_regdom+0x320/0x4ec (unreliable)
[ef107b70] [c02f9d10] nl80211_set_reg+0x140/0x2d0
[ef107bc0] [c02aa2b8] genl_rcv_msg+0x204/0x228
[ef107c10] [c02a97cc] netlink_rcv_skb+0xe8/0x10c
[ef107c30] [c02aa094] genl_rcv+0x3c/0x5c
[ef107c40] [c02a9050] netlink_unicast+0x308/0x36c
[ef107c80] [c02a92bc] netlink_sendmsg+0x208/0x2f0
[ef107cd0] [c0282048] sock_sendmsg+0xac/0xe4
[ef107db0] [c02822b4] sys_sendmsg+0x234/0x2d8
[ef107f00] [c0283a88] sys_socketcall+0x108/0x258
[ef107f40] [c0012790] ret_from_syscall+0x0/0x38

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-10 13:28:37 -04:00
..
9p net/9p: handle correctly interrupted 9P requests 2009-04-05 16:54:53 -05:00
802 net: remove COMPAT_NET_DEV_OPS 2009-05-25 01:53:53 -07:00
8021q net: convert unicast addr list 2009-05-29 22:12:32 -07:00
appletalk appletalk: Use frag list abstraction interfaces. 2009-06-09 00:17:44 -07:00
atm net: skb->dst accessors 2009-06-03 02:51:04 -07:00
ax25 ax25: proc uid file misses header 2009-04-20 02:14:59 -07:00
bluetooth isdn: rename capi_ctr_reseted() to capi_ctr_down() 2009-06-08 00:45:50 -07:00
bridge net: skb->dst accessors 2009-06-03 02:51:04 -07:00
can can: Network Drop Monitor: Make use of consume_skb() in af_can.c 2009-04-17 01:38:46 -07:00
core mac80211: do not pass PS frames out of mac80211 again 2009-06-10 13:28:37 -04:00
dcb DCB: fix kfree(skb) 2009-01-04 17:29:21 -08:00
dccp net: skb->dst accessors 2009-06-03 02:51:04 -07:00
decnet net: skb->dst accessors 2009-06-03 02:51:04 -07:00
dsa net: convert unicast addr list 2009-05-29 22:12:32 -07:00
econet econet: Use SKB queue and list helpers instead of doing it by-hand. 2009-05-28 16:46:29 -07:00
ethernet net: remove COMPAT_NET_DEV_OPS 2009-05-25 01:53:53 -07:00
ieee802154 net: add NL802154 interface for configuration of 802.15.4 devices 2009-06-09 05:25:33 -07:00
ipv4 netfilter: Use frag list abstraction interfaces. 2009-06-09 00:23:58 -07:00
ipv6 netfilter: Use frag list abstraction interfaces. 2009-06-09 00:23:58 -07:00
ipx ipx: use constant for strings and desciptor 2009-03-21 19:06:51 -07:00
irda irda: Use SKB queue and list helpers instead of doing it by-hand. 2009-05-28 23:26:33 -07:00
iucv af_iucv: Fix merge. 2009-04-23 06:37:16 -07:00
key af_key: remove some pointless conditionals before kfree_skb() 2009-02-26 23:07:32 -08:00
lapb
llc llc: Kill outdated and incorrect comment. 2009-05-28 23:31:56 -07:00
mac80211 mac80211: do not pass PS frames out of mac80211 again 2009-06-10 13:28:37 -04:00
netfilter net: skb->dst accessors 2009-06-03 02:51:04 -07:00
netlabel netlabel: Use genl_register_family_with_ops() 2009-05-21 16:50:24 -07:00
netlink genetlink: Introduce genl_register_family_with_ops() 2009-05-21 16:50:22 -07:00
netrom net/netrom: Fix socket locking 2009-04-22 00:49:51 -07:00
packet net: skb->dst accessors 2009-06-03 02:51:04 -07:00
phonet phonet: Use frag list abstraction interfaces. 2009-06-09 00:24:06 -07:00
rds Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-05-18 21:08:20 -07:00
rfkill rfkill: don't impose global states on resume (just restore the previous states) 2009-06-10 13:28:37 -04:00
rose Revert "rose: zero length frame filtering in af_rose.c" 2009-04-14 20:28:00 -07:00
rxrpc RxRPC: Error handling for rxrpc_alloc_connection() 2009-05-21 15:22:02 -07:00
sched pkt_sched: Use PSCHED_SHIFT in PSCHED time conversion 2009-06-09 05:25:29 -07:00
sctp sctp: Use frag list abstraction interfaces. 2009-06-09 00:24:07 -07:00
sunrpc net: skb->dst accessors 2009-06-03 02:51:04 -07:00
tipc tipc: Use genl_register_family_with_ops() 2009-05-21 16:50:23 -07:00
unix New helper - current_umask() 2009-03-31 23:00:26 -04:00
wanrouter wanrouter: fix sparse warnings: context imbalance 2009-02-26 23:13:36 -08:00
wimax wimax: depend on rfkill properly 2009-06-04 10:58:15 -04:00
wireless cfg80211: fix for duplicate response for driver reg request 2009-06-10 13:28:37 -04:00
x25 af_rose/x25: Sanity check the maximum user frame size 2009-03-27 00:28:21 -07:00
xfrm xfrm: Use frag list abstraction interfaces. 2009-06-09 00:24:07 -07:00
compat.c net: socket infrastructure for SO_TIMESTAMPING 2009-02-15 22:43:35 -08:00
Kconfig net: add IEEE 802.15.4 socket family implementation 2009-06-09 05:25:32 -07:00
Makefile net: add IEEE 802.15.4 socket family implementation 2009-06-09 05:25:32 -07:00
nonet.c
socket.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2009-04-06 18:05:43 -07:00
sysctl_net.c net: sysctl_net - use net_eq to compare nets 2009-03-16 16:23:30 +01:00
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