diff options
| author | Alessio Igor Bogani <abogani@kernel.org> | 2011-02-28 20:46:44 +0300 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-02-28 22:06:53 +0300 |
| commit | 701c2be03aac62a54decaa685c70d2b734afde67 (patch) | |
| tree | a0cd20de4d32967b1d67597845a26968f54f435b /drivers/net/sfc/nic.c | |
| parent | c3371d64d2b2fd029033976046cb4ca641485506 (diff) | |
| download | linux-701c2be03aac62a54decaa685c70d2b734afde67.tar.xz | |
rtlwifi: Add the missing rcu_read_lock/unlock
===================================================
[ INFO: suspicious rcu_dereference_check() usage. ]
---------------------------------------------------
net/mac80211/sta_info.c:125 invoked rcu_dereference_check() without protection!
other info that might help us debug this:
rcu_scheduler_active = 1, debug_locks = 0
5 locks held by wpa_supplicant/468:
#0: (rtnl_mutex){+.+.+.}, at: [<c1465d84>] rtnl_lock+0x14/0x20
#1: (&rdev->mtx){+.+.+.}, at: [<f84b8c2b>] cfg80211_mgd_wext_siwfreq+0x6b/0x170 [cfg80211]
#2: (&rdev->devlist_mtx){+.+.+.}, at: [<f84b8c37>] cfg80211_mgd_wext_siwfreq+0x77/0x170 [cfg80211]
#3: (&wdev->mtx){+.+.+.}, at: [<f84b8c44>] cfg80211_mgd_wext_siwfreq+0x84/0x170 [cfg80211]
#4: (&rtlpriv->locks.conf_mutex){+.+.+.}, at: [<f8506476>] rtl_op_bss_info_changed+0x26/0xc10 [rtlwifi]
stack backtrace:
Pid: 468, comm: wpa_supplicant Not tainted 2.6.38-rc6+ #79
Call Trace:
[<c108806a>] ? lockdep_rcu_dereference+0xaa/0xb0
[<f8523d2c>] ? sta_info_get_bss+0x19c/0x1b0 [mac80211]
[<f8523d62>] ? ieee80211_find_sta+0x22/0x40 [mac80211]
[<f850661c>] ? rtl_op_bss_info_changed+0x1cc/0xc10 [rtlwifi]
[<c153671c>] ? __mutex_unlock_slowpath+0x14c/0x160
[<c153673d>] ? mutex_unlock+0xd/0x10
[<f8507180>] ? rtl_op_config+0x120/0x310 [rtlwifi]
[<c10896db>] ? trace_hardirqs_on+0xb/0x10
[<f8522169>] ? ieee80211_bss_info_change_notify+0xf9/0x1f0 [mac80211]
[<f8506450>] ? rtl_op_bss_info_changed+0x0/0xc10 [rtlwifi]
[<f853646f>] ? ieee80211_set_channel+0xbf/0xd0 [mac80211]
[<f84b5f41>] ? cfg80211_set_freq+0x121/0x180 [cfg80211]
[<f85363b0>] ? ieee80211_set_channel+0x0/0xd0 [mac80211]
[<f84b8ceb>] ? cfg80211_mgd_wext_siwfreq+0x12b/0x170 [cfg80211]
[<f84b87eb>] ? cfg80211_wext_siwfreq+0x9b/0x100 [cfg80211]
[<c153b98b>] ? sub_preempt_count+0x7b/0xb0
[<c150f874>] ? ioctl_standard_call+0x74/0x3b0
[<c1465d84>] ? rtnl_lock+0x14/0x20
[<f84b8750>] ? cfg80211_wext_siwfreq+0x0/0x100 [cfg80211]
[<c14568bd>] ? __dev_get_by_name+0x8d/0xb0
[<c150fddb>] ? wext_handle_ioctl+0x16b/0x180
[<f84b8750>] ? cfg80211_wext_siwfreq+0x0/0x100 [cfg80211]
[<c145bc7a>] ? dev_ioctl+0x5ba/0x720
[<c108a947>] ? __lock_acquire+0x3e7/0x19b0
[<c1443b0b>] ? sock_ioctl+0x1eb/0x290
[<c108bfa5>] ? lock_release_non_nested+0x95/0x2f0
[<c1443920>] ? sock_ioctl+0x0/0x290
[<c114d74d>] ? do_vfs_ioctl+0x7d/0x5c0
[<c1112232>] ? might_fault+0x62/0xb0
[<c113e3c6>] ? fget_light+0x226/0x390
[<c1112278>] ? might_fault+0xa8/0xb0
[<c114dd17>] ? sys_ioctl+0x87/0x90
[<c1002f9f>] ? sysenter_do_call+0x12/0x38
This work was supported by a hardware donation from the CE Linux Forum.
Signed-off-by: Alessio Igor Bogani <abogani@kernel.org>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/sfc/nic.c')
0 files changed, 0 insertions, 0 deletions