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  1. 02 9月, 2014 1 次提交
    • C
      [media] media: fix kernel deadlock due to tuner pull-out while playing · 7a0af6ed
      由 Changbing Xiong 提交于 
      Normally, ADAP_STREAMING bit is set in dvb_usb_start_feed and cleared in
dvb_usb_stop_feed.

But in exceptional cases, for example, when the tv is playing programs
and the tuner is pulled out, then dvb_usbv2_disconnect is called.

In such case, it will first call dvb_usbv2_adapter_frontend_exit to stop
dvb_frontend_thread, and then call dvb_usbv2_adapter_dvb_exit to clear
ADAP_STREAMING bit.

At this point, if dvb_frontend_thread is sleeping and waiting for
ADAP_STREAMING to be cleared to get out of sleep. then
dvb_frontend_thread can never be stoped, because clearing ADAP_STREAMING
bit is performed after dvb_frontend_thread is stopped (i.e. performed in
dvb_usbv2_adapter_dvb_exit).

So, deadlock:

[  240.822037] INFO: task khubd:497 blocked for more than 120 seconds.
[  240.822655] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  240.830493] khubd           D c0013b3c     0   497      2 0x00000000
[  240.836996] [<c0013b3c>] (__schedule+0x200/0x54c) from [<c00110f4>] (schedule_timeout+0x14c/0x19c)
[  240.845940] [<c00110f4>] (schedule_timeout+0x14c/0x19c) from [<c00137f4>] (wait_for_common+0xac/0x150)
[  240.855234] [<c00137f4>] (wait_for_common+0xac/0x150) from [<c004989c>] (kthread_stop+0x58/0x90)
[  240.864004] [<c004989c>] (kthread_stop+0x58/0x90) from [<c03b2ebc>] (dvb_frontend_stop+0x3c/0x9c)
[  240.872849] [<c03b2ebc>] (dvb_frontend_stop+0x3c/0x9c) from [<c03b2f3c>] (dvb_unregister_frontend+0x20/0xd8)
[  240.882666] [<c03b2f3c>] (dvb_unregister_frontend+0x20/0xd8) from [<c03ed938>] (dvb_usbv2_exit+0x68/0xfc)
[  240.892204] [<c03ed938>] (dvb_usbv2_exit+0x68/0xfc) from [<c03eda18>] (dvb_usbv2_disconnect+0x4c/0x70)
[  240.901499] [<c03eda18>] (dvb_usbv2_disconnect+0x4c/0x70) from [<c031c050>] (usb_unbind_interface+0x58/0x188)
[  240.911395] [<c031c050>] (usb_unbind_interface+0x58/0x188) from [<c02c3e78>] (__device_release_driver+0x74/0xd0)
[  240.921544] [<c02c3e78>] (__device_release_driver+0x74/0xd0) from [<c02c3ef0>] (device_release_driver+0x1c/0x28)
[  240.931697] [<c02c3ef0>] (device_release_driver+0x1c/0x28) from [<c02c39b8>] (bus_remove_device+0xc4/0xe4)
[  240.941332] [<c02c39b8>] (bus_remove_device+0xc4/0xe4) from [<c02c1344>] (device_del+0xf4/0x178)
[  240.950106] [<c02c1344>] (device_del+0xf4/0x178) from [<c0319eb0>] (usb_disable_device+0xa0/0x1c8)
[  240.959040] [<c0319eb0>] (usb_disable_device+0xa0/0x1c8) from [<c03128b4>] (usb_disconnect+0x88/0x188)
[  240.968326] [<c03128b4>] (usb_disconnect+0x88/0x188) from [<c0313edc>] (hub_thread+0x4d0/0x1200)
[  240.977100] [<c0313edc>] (hub_thread+0x4d0/0x1200) from [<c0049690>] (kthread+0xa4/0xb0)
[  240.985174] [<c0049690>] (kthread+0xa4/0xb0) from [<c0009118>] (ret_from_fork+0x14/0x3c)
[  240.993259] INFO: task kdvb-ad-0-fe-0:3256 blocked for more than 120 seconds.
[  241.000349] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  241.008162] kdvb-ad-0-fe-0  D c0013b3c     0  3256      2 0x00000000
[  241.014507] [<c0013b3c>] (__schedule+0x200/0x54c) from [<c03eda44>] (wait_schedule+0x8/0x10)
[  241.022924] [<c03eda44>] (wait_schedule+0x8/0x10) from [<c001120c>] (__wait_on_bit+0x74/0xb8)
[  241.031434] [<c001120c>] (__wait_on_bit+0x74/0xb8) from [<c00112b8>] (out_of_line_wait_on_bit+0x68/0x70)
[  241.040902] [<c00112b8>] (out_of_line_wait_on_bit+0x68/0x70) from [<c03e5e88>] (dvb_usb_fe_sleep+0xf4/0xfc)
[  241.050618] [<c03e5e88>] (dvb_usb_fe_sleep+0xf4/0xfc) from [<c03b4b74>] (dvb_frontend_thread+0x124/0x4e8)
[  241.060164] [<c03b4b74>] (dvb_frontend_thread+0x124/0x4e8) from [<c0049690>] (kthread+0xa4/0xb0)
[  241.068929] [<c0049690>] (kthread+0xa4/0xb0) from [<c0009118>] (ret_from_fork+0x14/0x3c)

Fix it by calling dvb_usbv2_adapter_frontend_exit() latter.

Test enviroment: odroidx2 + Hauppauge(WinTV-Aero-M)
Signed-off-by: NChangbing Xiong <cb.xiong@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
      7a0af6ed
  3. 27 8月, 2014 35 次提交
  5. 22 8月, 2014 4 次提交
    • R
      [media] media: ttpci: fix av7110 build to be compatible with CONFIG_INPUT_EVDEV · b250392f
      由 Randy Dunlap 提交于 
      Fix build when CONFIG_INPUT_EVDEV=m and DVB_AV7110=y.
Only build av7110_ir.c when CONFIG_INPUT_EVDEV is compatible with
CONFIG_DVB_AV7110.

Fixes these build errors:

drivers/built-in.o: In function `input_sync':
av7110_ir.c:(.text+0x1223ac): undefined reference to `input_event'
drivers/built-in.o: In function `av7110_emit_key':
av7110_ir.c:(.text+0x12247c): undefined reference to `input_event'
av7110_ir.c:(.text+0x122495): undefined reference to `input_event'
av7110_ir.c:(.text+0x122569): undefined reference to `input_event'
av7110_ir.c:(.text+0x1225a7): undefined reference to `input_event'
drivers/built-in.o:av7110_ir.c:(.text+0x122629): more undefined
references to `input_event' follow
drivers/built-in.o: In function `av7110_ir_init':
(.text+0x1227e4): undefined reference to `input_allocate_device'
drivers/built-in.o: In function `av7110_ir_init':
(.text+0x12298f): undefined reference to `input_register_device'
drivers/built-in.o: In function `av7110_ir_init':
(.text+0x12299e): undefined reference to `input_free_device'
drivers/built-in.o: In function `av7110_ir_exit':
(.text+0x122a94): undefined reference to `input_unregister_device'

drivers/built-in.o: In function `av7110_detach':
av7110.c:(.text+0x228d4a): undefined reference to `av7110_ir_exit'
drivers/built-in.o: In function `arm_thread':
av7110.c:(.text+0x22a404): undefined reference to `av7110_check_ir_config'
av7110.c:(.text+0x22a626): undefined reference to `av7110_check_ir_config'
drivers/built-in.o: In function `av7110_attach':
av7110.c:(.text+0x22b08c): undefined reference to `av7110_ir_init'
Signed-off-by: NRandy Dunlap <rdunlap@infradead.org>
Reported-by: NRandy Dunlap <rdunlap@infradead.org>
Reported-by: NJim Davis <jim.epost@gmail.com>
Reported-by: NFengguang Wu <fengguang.wu@intel.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
      b250392f
    • M
      [media] usbtv: Make it dependent on ALSA · 85c1abcb
      由 Mauro Carvalho Chehab 提交于 
      Now that alsa code is part of the driver, it can be compiled
only if alsa is enabled.

   drivers/built-in.o: In function `snd_usbtv_hw_free':
>> usbtv-audio.c:(.text+0x21eb55): undefined reference to `snd_pcm_lib_free_pages'
   drivers/built-in.o: In function `snd_usbtv_hw_params':
>> usbtv-audio.c:(.text+0x21eb72): undefined reference to `snd_pcm_lib_malloc_pages'
   drivers/built-in.o: In function `usbtv_audio_urb_received':
>> usbtv-audio.c:(.text+0x21ed66): undefined reference to `snd_pcm_link_rwlock'
>> usbtv-audio.c:(.text+0x21ed9f): undefined reference to `snd_pcm_link_rwlock'
>> usbtv-audio.c:(.text+0x21edf5): undefined reference to `snd_pcm_period_elapsed'
   drivers/built-in.o: In function `usbtv_audio_init':
>> (.text+0x21f00a): undefined reference to `snd_card_new'
   drivers/built-in.o: In function `usbtv_audio_init':
>> (.text+0x21f0a2): undefined reference to `snd_pcm_new'
   drivers/built-in.o: In function `usbtv_audio_init':
>> (.text+0x21f0e5): undefined reference to `snd_pcm_set_ops'
   drivers/built-in.o: In function `usbtv_audio_init':
>> (.text+0x21f103): undefined reference to `snd_pcm_lib_preallocate_pages_for_all'
   drivers/built-in.o: In function `usbtv_audio_init':
>> (.text+0x21f10c): undefined reference to `snd_card_register'
   drivers/built-in.o: In function `usbtv_audio_init':
>> (.text+0x21f12a): undefined reference to `snd_card_free'
   drivers/built-in.o: In function `usbtv_audio_free':
>> (.text+0x21f15c): undefined reference to `snd_card_free'
>> drivers/built-in.o:(.data+0x43250): undefined reference to `snd_pcm_lib_ioctl'
Reported-by: Nkbuild test robot <fengguang.wu@intel.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
      85c1abcb
    • S
      [media] media: fix au0828 dvb suspend/resume to call dvb_frontend_suspend/resume · 66cae530
      由 Shuah Khan 提交于 
      au0828 doesn't resume correctly and TV tuning fails with
xc_set_signal_source(0) failed message. Change au0828 dvb
suspend and resume interfaces to suspend and resume frontend
during suspend and resume respectively. dvb_frontend_suspend()
suspends tuner and fe using tuner and fe ops. dvb_frontend_resume()
resumes fe and tuner using fe and tuner ops ini before waking up
the frontend. With this change HVR950Q suspend and resume work
when system gets suspended when digital function is tuned to a
channel and with active TV stream, and after resume it went right
back to active TV stream.
Signed-off-by: NShuah Khan <shuah.kh@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
      66cae530
    • F
      [media] em28xx-v4l: fix video buffer field order reporting in progressive mode · 662c97cf
      由 Frank Schaefer 提交于 
      The correct field order in progressive mode is V4L2_FIELD_NONE, not V4L2_FIELD_INTERLACED.

Cc: <stable@vger.kernel.org>
Signed-off-by: NFrank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
      662c97cf