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linux/net/wireless
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Stanislaw Gruszka ecb4433550 mac80211: fix suspend/resume races with unregister hw 
Do not call ->suspend, ->resume methods after we unregister wiphy. Also
delete sta_clanup timer after we finish wiphy unregister to avoid this:

WARNING: at lib/debugobjects.c:262 debug_print_object+0x85/0xa0()
Hardware name: 6369CTO
ODEBUG: free active (active state 0) object type: timer_list hint: sta_info_cleanup+0x0/0x180 [mac80211]
Modules linked in: aes_i586 aes_generic fuse bridge stp llc autofs4 sunrpc cpufreq_ondemand acpi_cpufreq mperf ext2 dm_mod uinput thinkpad_acpi hwmon sg arc4 rt2800usb rt2800lib crc_ccitt rt2x00usb rt2x00lib mac80211 cfg80211 i2c_i801 iTCO_wdt iTCO_vendor_support e1000e ext4 mbcache jbd2 sd_mod crc_t10dif sr_mod cdrom yenta_socket ahci libahci pata_acpi ata_generic ata_piix i915 drm_kms_helper drm i2c_algo_bit video [last unloaded: microcode]
Pid: 5663, comm: pm-hibernate Not tainted 3.1.0-rc1-wl+ #19
Call Trace:
 [<c0454cfd>] warn_slowpath_common+0x6d/0xa0
 [<c05e05e5>] ? debug_print_object+0x85/0xa0
 [<c05e05e5>] ? debug_print_object+0x85/0xa0
 [<c0454dae>] warn_slowpath_fmt+0x2e/0x30
 [<c05e05e5>] debug_print_object+0x85/0xa0
 [<f8a808e0>] ? sta_info_alloc+0x1a0/0x1a0 [mac80211]
 [<c05e0bd2>] debug_check_no_obj_freed+0xe2/0x180
 [<c051175b>] kfree+0x8b/0x150
 [<f8a126ae>] cfg80211_dev_free+0x7e/0x90 [cfg80211]
 [<f8a13afd>] wiphy_dev_release+0xd/0x10 [cfg80211]
 [<c068d959>] device_release+0x19/0x80
 [<c05d06ba>] kobject_release+0x7a/0x1c0
 [<c07646a8>] ? rtnl_unlock+0x8/0x10
 [<f8a13adb>] ? wiphy_resume+0x6b/0x80 [cfg80211]
 [<c05d0640>] ? kobject_del+0x30/0x30
 [<c05d1a6d>] kref_put+0x2d/0x60
 [<c05d056d>] kobject_put+0x1d/0x50
 [<c08015f4>] ? mutex_lock+0x14/0x40
 [<c068d60f>] put_device+0xf/0x20
 [<c069716a>] dpm_resume+0xca/0x160
 [<c04912bd>] hibernation_snapshot+0xcd/0x260
 [<c04903df>] ? freeze_processes+0x3f/0x90
 [<c049151b>] hibernate+0xcb/0x1e0
 [<c048fdc0>] ? pm_async_store+0x40/0x40
 [<c048fe60>] state_store+0xa0/0xb0
 [<c048fdc0>] ? pm_async_store+0x40/0x40
 [<c05d0200>] kobj_attr_store+0x20/0x30
 [<c0575ea4>] sysfs_write_file+0x94/0xf0
 [<c051e26a>] vfs_write+0x9a/0x160
 [<c0575e10>] ? sysfs_open_file+0x200/0x200
 [<c051e3fd>] sys_write+0x3d/0x70
 [<c080959f>] sysenter_do_call+0x12/0x28

Cc: stable@kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:21:40 -04:00
..
.gitignore wireless: support internal statically compiled regulatory database 2009-12-21 18:56:10 -05:00
chan.c cfg80211: fix can_beacon_sec_chan, reenable HT40 2010-11-18 11:35:05 -05:00
core.c mac80211: fix suspend/resume races with unregister hw 2011-08-22 14:21:40 -04:00
core.h cfg80211: allow userspace to control supported rates in scan 2011-07-19 16:49:58 -04:00
db.txt wireless: support internal statically compiled regulatory database 2009-12-21 18:56:10 -05:00
debugfs.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
debugfs.h cfg80211/mac80211: use debugfs_remove_recursive 2009-10-30 16:49:18 -04:00
ethtool.c wireless: add support for ethtool_ops->{get,set}_ringparam 2011-03-11 14:16:58 -05:00
ethtool.h net/wireless/ethtool.h: drop unnecessary include of linux/ethtool.h 2009-10-07 16:39:49 -04:00
genregdb.awk wireless: correct sparse warning in generated regdb.c 2010-07-20 16:49:37 -04:00
ibss.c cfg80211/mac80211: allow per-station GTKs 2010-10-06 16:30:40 -04:00
Kconfig kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT 2011-01-20 17:02:05 -08:00
lib80211_crypt_ccmp.c lib80211: remove unused host_build_iv option 2010-07-26 15:09:04 -04:00
lib80211_crypt_tkip.c net/wireless: Use pr_<level> and netdev_<level> 2010-11-24 16:19:33 -05:00
lib80211_crypt_wep.c wireless: Fix warnings due to -Wunused-but-set-variable 2011-05-10 15:53:47 -04:00
lib80211.c net/wireless: Use pr_<level> and netdev_<level> 2010-11-24 16:19:33 -05:00
Makefile cfg80211/mac80211: add mesh join/leave commands 2010-12-06 16:01:29 -05:00
mesh.c nl80211: New notification to discover mesh peer candidates. 2011-04-12 16:57:39 -04:00
mlme.c cfg80211/nl80211: support GTK rekey offload 2011-07-06 15:05:42 -04:00
nl80211.c cfg80211: off by one in nl80211_trigger_scan() 2011-08-01 13:46:46 -04:00
nl80211.h cfg80211/nl80211: support GTK rekey offload 2011-07-06 15:05:42 -04:00
radiotap.c radiotap: fix vendor namespace parsing 2010-10-15 15:57:34 -04:00
reg.c wireless: fix a typo in ignore_reg_update 2011-07-26 16:27:32 -04:00
reg.h net/wireless: add COUNTRY to to regulatory device uevent 2011-03-09 16:10:57 -05:00
regdb.h wireless: support internal statically compiled regulatory database 2009-12-21 18:56:10 -05:00
scan.c cfg80211: fix scan crash on single-band cards 2011-07-20 15:04:38 -04:00
sme.c cfg80211: Use consistent BSS matching between scan and sme 2011-05-19 10:37:18 -04:00
sysfs.c mac80211: fix suspend/resume races with unregister hw 2011-08-22 14:21:40 -04:00
sysfs.h
util.c cfg80211: fix scan crash on single-band cards 2011-07-20 15:04:38 -04:00
wext-compat.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-03-03 21:27:42 -08:00
wext-compat.h cfg80211: validate channel settings across interfaces 2009-08-14 09:13:42 -04:00
wext-core.c net/wireless: Use pr_<level> and netdev_<level> 2010-11-24 16:19:33 -05:00
wext-priv.c wext: fix potential private ioctl memory content leak 2010-09-20 13:41:40 -04:00
wext-proc.c net: spread __net_init, __net_exit 2010-01-17 19:16:02 -08:00
wext-sme.c cfg80211: allow changing port control protocol 2010-08-27 13:27:07 -04:00
wext-spy.c wext: refactor 2009-10-07 16:39:43 -04:00