usb 4-1: selecting invalid altsetting 1
set interface failed
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 0 PID: 551 Comm: kworker/0:3 Not tainted 5.1.0-rc3-319004-g43151d6 #6
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xe8/0x16e lib/dump_stack.c:113
 assign_lock_key kernel/locking/lockdep.c:786 [inline]
 register_lock_class+0x11b8/0x1250 kernel/locking/lockdep.c:1095
 __lock_acquire+0xfb/0x37c0 kernel/locking/lockdep.c:3582
 lock_acquire+0x10d/0x2f0 kernel/locking/lockdep.c:4211
 __mutex_lock_common kernel/locking/mutex.c:925 [inline]
 __mutex_lock+0xfe/0x12b0 kernel/locking/mutex.c:1072
 mxl111sf_ctrl_msg+0xc7/0x250 drivers/media/usb/dvb-usb-v2/mxl111sf.c:69
 mxl111sf_write_reg+0x9f/0x160 drivers/media/usb/dvb-usb-v2/mxl111sf.c:126
 mxl1x1sf_soft_reset+0x70/0x190 drivers/media/usb/dvb-usb-v2/mxl111sf-phy.c:56
 mxl111sf_lgdt3305_frontend_attach.constprop.0+0x252/0x7c0 drivers/media/usb/dvb-usb-v2/mxl111sf.c:450
 mxl111sf_frontend_attach_mercury+0x27/0xa0 drivers/media/usb/dvb-usb-v2/mxl111sf.c:1007
 dvb_usbv2_adapter_frontend_init drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:654 [inline]
 dvb_usbv2_adapter_init drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:817 [inline]
 dvb_usbv2_init drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:878 [inline]
 dvb_usbv2_probe.cold+0x2170/0x29f6 drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:993
 usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361
 really_probe+0x2da/0xb10 drivers/base/dd.c:509
 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
 __device_attach+0x223/0x3a0 drivers/base/dd.c:844
 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
 device_add+0xad2/0x16e0 drivers/base/core.c:2106
 usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2023
 generic_probe+0xa2/0xda drivers/usb/core/generic.c:210
 usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266
 really_probe+0x2da/0xb10 drivers/base/dd.c:509
 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
 __device_attach+0x223/0x3a0 drivers/base/dd.c:844
 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
 device_add+0xad2/0x16e0 drivers/base/core.c:2106
 usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534
 hub_port_connect drivers/usb/core/hub.c:5089 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
 port_event drivers/usb/core/hub.c:5350 [inline]
 hub_event+0x138e/0x3b00 drivers/usb/core/hub.c:5432
 process_one_work+0x90f/0x1580 kernel/workqueue.c:2269
 worker_thread+0x9b/0xe20 kernel/workqueue.c:2415
 kthread+0x313/0x420 kernel/kthread.c:253
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
usb 4-1: dvb_usb_v2: usb_bulk_msg() failed=-22
error writing reg: 0xff, val: 0x00
dvb_usb_mxl111sf: probe of 4-1:0.0 failed with error -22
usb 4-1: USB disconnect, device number 109
usb 4-1: new high-speed USB device number 110 using dummy_hcd
usb 4-1: Using ep0 maxpacket: 8
usb 4-1: New USB device found, idVendor=2040, idProduct=d8e3, bcdDevice=4d.8f
usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 4-1: config 0 descriptor??
usb 4-1: string descriptor 0 read error: -71
usb 4-1: dvb_usb_v2: found a 'Hauppauge Mercury' in warm state
usb 4-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
dvbdev: DVB: registering new adapter (Hauppauge Mercury)
usb 4-1: selecting invalid altsetting 1
set interface failed
usb 4-1: dvb_usb_v2: usb_bulk_msg() failed=-22
error writing reg: 0xff, val: 0x00
dvb_usb_mxl111sf: probe of 4-1:0.0 failed with error -22
usb 4-1: USB disconnect, device number 110
usb 4-1: new high-speed USB device number 111 using dummy_hcd
usb 4-1: Using ep0 maxpacket: 32
usb 4-1: config 1 has an invalid interface number: 1 but max is 0
usb 4-1: config 1 has no interface number 0
usb 4-1: New USB device found, idVendor=0830, idProduct=0001, bcdDevice=9b.25
usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 4-1: palm_os_4_probe - error -110 getting connection info
visor 4-1:1.1: Handspring Visor / Palm OS converter detected
usb 4-1: Handspring Visor / Palm OS converter now attached to ttyUSB0
usb 4-1: Handspring Visor / Palm OS converter now attached to ttyUSB1
usb 2-1: USB disconnect, device number 13
usb 2-1: new high-speed USB device number 14 using dummy_hcd
usb 2-1: Using ep0 maxpacket: 8
usb 2-1: New USB device found, idVendor=1d50, idProduct=606f, bcdDevice=95.ca
usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 2-1: config 0 descriptor??
gs_usb 2-1:0.0: Configuring for 1 interfaces