linux-sg2042/sound/usb
Takashi Iwai 1213a205f9 ALSA: usb-audio: Fix bogus error messages for delay accounting
The recent fix for the missing fine delayed time adjustment gives
strange error messages at each start of the playback stream, such as
  delay: estimated 0, actual 352
  delay: estimated 353, actual 705

These come from the sanity check in retire_playback_urb().  Before the
stream is activated via start_endpoints(), a few silent packets have
been already sent.  And at this point the delay account is still in
the state as if the new packets are just queued, so the driver gets
confused and spews the bogus error messages.

For fixing the issue, we just need to check whether the received
packet is valid, whether it's zero sized or not.

Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Cc: <stable@vger.kernel.org> [v3.5+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-09-06 15:00:15 +02:00
..
6fire ALSA: 6fire: use NULL instead of 0 for pointer assignment 2012-06-18 09:36:38 +02:00
caiaq ALSA: snd-usb-caiaq: initialize card pointer 2012-06-27 12:26:19 +02:00
misc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound 2012-01-12 08:00:30 -08:00
usx2y ALSA: usx2y: Fix typo in usbusx2yaudio.c and usx2yhwdeppcm.c 2012-02-15 14:56:11 +01:00
Kconfig ALSA: snd-usb-6fire: Select missing SND_VMASTER option in Kconfig 2012-02-25 11:07:19 +01:00
Makefile ALSA: snd-usb: move code from urb.c to endpoint.c 2011-09-14 17:07:03 +02:00
card.c ALSA: snd-usb: use list_for_each_safe for endpoint resources 2012-08-31 18:17:45 +02:00
card.h ALSA: usb-audio: Fix substream assignments 2012-06-08 09:01:37 +02:00
clock.c ALSA: snd-usb: fix clock source validity index 2012-08-01 10:24:16 +02:00
clock.h ALSA: usb-audio: simplify control interface access 2010-06-23 16:10:23 +02:00
debug.h ALSA: usb-audio: make hwc_debug a noop in case HW_CONST_DEBUG is not set 2011-05-18 11:44:35 +02:00
endpoint.c ALSA: snd-usb: fix calls to next_packet_size 2012-08-31 21:03:48 +02:00
endpoint.h ALSA: snd-usb: fix calls to next_packet_size 2012-08-31 21:03:48 +02:00
format.c ALSA: usb-audio: avoid integer overflow in create_fixed_stream_quirk() 2012-02-15 14:58:15 +01:00
format.h ALSA: usb-audio: parse more format descriptors with structs 2010-05-27 09:48:31 +02:00
helper.c ALSA: usb-audio: increase control transfer timeout 2011-09-27 09:21:48 +02:00
helper.h ALSA: usb-audio: increase control transfer timeout 2011-09-27 09:21:48 +02:00
midi.c sound: Add module.h to the previously silent sound users 2011-10-31 19:31:21 -04:00
midi.h ALSA: usb-audio: add support for Akai MPD16 2010-05-21 17:12:30 +02:00
mixer.c ALSA: usb-audio - Call get_min_max_*() after determining the name string 2012-05-15 08:35:00 +02:00
mixer.h ALSA: usb-audio: Rename and export mixer_vol_tlv 2012-04-24 08:01:27 +02:00
mixer_maps.c ALSA: snd_usb_audio: ignore ctrl errors on QuickCam Pro for Notebooks 2012-06-20 08:29:08 +02:00
mixer_quirks.c ALSA: usb-audio: Convert table to preferred C99 format 2012-06-11 12:49:56 +02:00
mixer_quirks.h ALSA: usb-mixer: factor out quirks 2010-03-12 12:20:26 +01:00
pcm.c ALSA: usb-audio: Fix bogus error messages for delay accounting 2012-09-06 15:00:15 +02:00
pcm.h ALSA: usb: refine delay information with USB frame counter 2011-09-12 10:30:20 +02:00
power.h ALSA: usbaudio: implement USB autosuspend 2011-03-11 14:59:29 +01:00
proc.c ALSA: snd-usb: remove refactorization left-overs 2012-04-21 17:40:28 +02:00
proc.h ALSA: usb-audio: refactor code 2010-03-05 08:17:14 +01:00
quirks-table.h ALSA: usb-audio: add BOSS GT-100 support 2012-06-25 11:11:24 +02:00
quirks.c ALSA: usb-audio: avoid integer overflow in create_fixed_stream_quirk() 2012-02-15 14:58:15 +01:00
quirks.h ALSA: usb-audio: refactor code 2010-03-05 08:17:14 +01:00
stream.c ALSA: usb-audio: Fix substream assignments 2012-06-08 09:01:37 +02:00
stream.h ALSA: snd-usb: re-order code 2011-09-14 17:07:02 +02:00
usbaudio.h ALSA: snd-usb: implement new endpoint streaming model 2012-04-13 10:23:42 +02:00