diff options
| author | Tomas Winkler <tomas.winkler@intel.com> | 2013-01-10 17:32:14 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-14 08:26:03 -0800 |
| commit | 8e9a4a9a5c8e8765417d54ed6917c7e1e4d09f4d (patch) | |
| tree | 2c272cc2586d77116a4dceda4894186964c2000c | |
| parent | 627ca75733c84427992d798cfebb8e4fd2428917 (diff) | |
| download | linux-8e9a4a9a5c8e8765417d54ed6917c7e1e4d09f4d.tar.bz2 | |
mei: drop the warning when cl is not initialized during unlinking
On systems where wd and amthif is not initialized
we will hit cl->dev == NULL. This condition is okay
so we don't need to be laud about it.
Fixes the follwing warning during suspend
[ 137.061985] WARNING: at drivers/misc/mei/client.c:315 mei_cl_unlink+0x86/0x90 [mei]()
[ 137.061986] Hardware name: 530U3BI/530U4BI/530U4BH
[ 137.062140] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_realtek joydev coretemp kvm_intel snd_hda_intel snd_hda_codec kvm arc4 iwldvm snd_hwdep i915 snd_pcm mac80211 ghash_clmulni_intel snd_page_alloc aesni_intel snd_seq_midi xts snd_seq_midi_event aes_x86_64 rfcomm snd_rawmidi parport_pc bnep lrw snd_seq uvcvideo i2c_algo_bit ppdev gf128mul iwlwifi snd_timer drm_kms_helper ablk_helper cryptd drm snd_seq_device videobuf2_vmalloc psmouse videobuf2_memops snd cfg80211 btusb videobuf2_core soundcore videodev lp bluetooth samsung_laptop wmi microcode mei serio_raw mac_hid video hid_generic lpc_ich parport usbhid hid r8169
[ 137.062143] Pid: 2706, comm: kworker/u:15 Tainted: G D W 3.8.0-rc2-next20130109-1-iniza-generic #1
[ 137.062144] Call Trace:
[ 137.062156] [<ffffffff8105860f>] warn_slowpath_common+0x7f/0xc0
[ 137.062159] [<ffffffff8135b1ea>] ? ioread32+0x3a/0x40
[ 137.062162] [<ffffffff8105866a>] warn_slowpath_null+0x1a/0x20
[ 137.062168] [<ffffffffa0076be6>] mei_cl_unlink+0x86/0x90 [mei]
[ 137.062173] [<ffffffffa0071325>] mei_reset+0xc5/0x240 [mei]
[ 137.062178] [<ffffffffa0073703>] mei_pci_resume+0xa3/0x110 [mei]
[ 137.062183] [<ffffffff81379cae>] pci_pm_resume+0x7e/0xe0
[ 137.062185] [<ffffffff81379c30>] ? pci_pm_thaw+0x80/0x80
[ 137.062189] [<ffffffff8145a415>] dpm_run_callback.isra.6+0x25/0x50
[ 137.062192] [<ffffffff8145a6cf>] device_resume+0x9f/0x140
[ 137.062194] [<ffffffff8145a791>] async_resume+0x21/0x50
[ 137.062200] [<ffffffff810858b0>] async_run_entry_fn+0x90/0x1c0
[ 137.062203] [<ffffffff810778e5>] process_one_work+0x155/0x460
[ 137.062207] [<ffffffff81078578>] worker_thread+0x168/0x400
[ 137.062210] [<ffffffff81078410>] ? manage_workers+0x2b0/0x2b0
[ 137.062214] [<ffffffff8107d9f0>] kthread+0xc0/0xd0
[ 137.062218] [<ffffffff8107d930>] ? flush_kthread_worker+0xb0/0xb0
[ 137.062222] [<ffffffff816bac6c>] ret_from_fork+0x7c/0xb0
[ 137.062228] [<ffffffff8107d930>] ? flush_kthread_worker+0xb0/0xb0
Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/misc/mei/client.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c index d566dd880eb0..a921001053ba 100644 --- a/drivers/misc/mei/client.c +++ b/drivers/misc/mei/client.c @@ -312,8 +312,9 @@ int mei_cl_unlink(struct mei_cl *cl) if (!cl) return 0; - if (WARN_ON(!cl->dev)) - return -EINVAL; + /* wd and amthif might not be initialized */ + if (!cl->dev) + return 0; dev = cl->dev; |