Sujith Manoharan e68f67509d ath6kl: Fix panic when setting a channel ... cfg80211 could pass a NULL net_device to the driver via the set_channel() callback, when it receives a request to set the device's channel. Not handling this case properly results in this panic: BUG: unable to handle kernel NULL pointer dereference at 0000000000000cb0 IP: [<ffffffffa0374e49>] ath6kl_cfg80211_ready+0x9/0x70 [ath6kl_sdio] Call Trace: [<ffffffffa0374ed7>] ath6kl_set_channel+0x27/0x90 [ath6kl_sdio] [<ffffffffa04dfd5f>] cfg80211_set_freq+0xff/0x1d0 [cfg80211] [<ffffffffa04d3275>] ? nl80211_set_wiphy+0x85/0x660 [cfg80211] [<ffffffffa04d3198>] __nl80211_set_channel.isra.39+0x118/0x140 [cfg80211] [<ffffffffa04d34f3>] nl80211_set_wiphy+0x303/0x660 [cfg80211] [<ffffffff813678d7>] ? rtnl_lock+0x17/0x20 [<ffffffffa04ca165>] ? nl80211_pre_doit+0xb5/0x150 [cfg80211] [<ffffffff81382a45>] genl_rcv_msg+0x1d5/0x250 [<ffffffff81382870>] ? genl_rcv+0x40/0x40 [<ffffffff81381be9>] netlink_rcv_skb+0xa9/0xd0 [<ffffffff81382855>] genl_rcv+0x25/0x40 [<ffffffff811354f0>] ? might_fault+0x40/0x90 [<ffffffff81381519>] netlink_unicast+0x2d9/0x320 [<ffffffff813818e6>] netlink_sendmsg+0x2c6/0x320 [<ffffffff81343800>] ? sock_update_classid+0xb0/0x110 [<ffffffff8133f52e>] sock_sendmsg+0x10e/0x130 [<ffffffff81169933>] ? mem_cgroup_update_page_stat+0x193/0x250 [<ffffffff811354f0>] ? might_fault+0x40/0x90 [<ffffffff811354f0>] ? might_fault+0x40/0x90 [<ffffffff81135539>] ? might_fault+0x89/0x90 [<ffffffff811354f0>] ? might_fault+0x40/0x90 [<ffffffff8134d126>] ? verify_iovec+0x56/0xd0 [<ffffffff8133f9e6>] __sys_sendmsg+0x396/0x3b0 [<ffffffff8108e823>] ? up_read+0x23/0x40 [<ffffffff81040e68>] ? do_page_fault+0x208/0x4e0 [<ffffffff81193151>] ? vfsmount_lock_local_unlock+0x21/0x60 [<ffffffff811947d0>] ? mntput_no_expire+0x30/0xe0 [<ffffffff8119489f>] ? mntput+0x1f/0x30 [<ffffffff81342149>] sys_sendmsg+0x49/0x90 [<ffffffff81425482>] system_call_fastpath+0x16/0x1b Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>		2011-12-23 15:13:03 +02:00
..
bmi.c	ath6kl: add USB support	2011-11-13 12:34:30 +02:00
bmi.h	ath6kl: change bmi sizes being configurable by HIF	2011-11-13 12:34:29 +02:00
cfg80211.c	ath6kl: Fix panic when setting a channel	2011-12-23 15:13:03 +02:00
cfg80211.h	ath6kl: implement scheduled scan	2011-12-13 15:03:49 +02:00
common.h	ath6kl: Add support for configuring SMS4 keys	2011-11-13 10:57:38 +02:00
core.h	ath6kl: add support for FW API 3	2011-12-23 14:53:22 +02:00
debug.c	Merge remote branch 'wireless-next/master' into ath6kl-next	2011-12-16 21:10:39 +02:00
debug.h	Merge remote branch 'wireless-next/master' into ath6kl-next	2011-12-16 21:10:39 +02:00
hif-ops.h	ath6kl: move diag commands to hif driver	2011-11-13 12:34:29 +02:00
hif.c	ath6kl: disable HTC for USB devices	2011-11-13 12:34:30 +02:00
hif.h	ath6kl: AR6004 SDIO support	2011-11-13 12:34:30 +02:00
htc.c	ath6kl: disable HTC for USB devices	2011-11-13 12:34:30 +02:00
htc.h	ath6kl: use ath6kl_credit prefix consistently	2011-11-11 12:58:54 +02:00
init.c	ath6kl: add support for FW API 3	2011-12-23 14:53:22 +02:00
Kconfig	ath6kl: enable USB support	2011-11-13 12:34:31 +02:00
main.c	ath6kl: implement ath6kl_cfg80211_stop_all()	2011-12-13 15:03:46 +02:00
Makefile	ath6kl: enable USB support	2011-11-13 12:34:31 +02:00
sdio.c	ath6kl: handle firmware names more dynamically	2011-12-23 14:53:21 +02:00
target.h	ath6kl: add board address to struct ath6kl_hw	2011-11-16 10:22:33 +02:00
testmode.c	ath6kl: add testmode support	2011-09-01 10:14:21 +03:00
testmode.h	ath6kl: fix compilation when NL80211_TESTMODE is disabled	2011-09-01 12:04:59 +03:00
txrx.c	ath6kl: make maximum number of vifs runtime configurable	2011-11-16 10:22:34 +02:00
usb.c	ath6kl: handle firmware names more dynamically	2011-12-23 14:53:21 +02:00
wmi.c	ath6kl: Avoid taking struct as argument in ath6kl_wmi_set_ip_cmd	2011-12-23 14:50:05 +02:00
wmi.h	ath6kl: Avoid taking struct as argument in ath6kl_wmi_set_ip_cmd	2011-12-23 14:50:05 +02:00