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e9ba389c5f
linux/sound/usb
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Takashi Iwai e9ba389c5f ALSA: usb-audio: Fix scheduling-while-atomic bug in PCM capture stream 
A PCM capture stream on usb-audio causes a scheduling-while-atomic
BUG, as reported in the bugzilla entry below.  It's because
snd_usb_endpoint_start() is called at first at trigger START for a
capture stream, and this function contains the left-over EP
deactivation codes.  The problem doesn't happen for a playback stream
because the function is called at PCM prepare time, which can sleep.

This patch fixes the BUG by moving the EP deactivation code into the
PCM prepare callback.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=46011
Cc: <stable@vger.kernel.org> [v3.5+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-08-16 08:04:07 +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
card.c ALSA: snd-usb: switch over to new endpoint streaming logic 2012-04-13 10:24:08 +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: usb-audio: Fix scheduling-while-atomic bug in PCM capture stream 2012-08-16 08:04:07 +02:00
endpoint.h ALSA: snd-usb: remove old streaming logic 2012-04-13 10:24:23 +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
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
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_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
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
pcm.c ALSA: usb-audio: Fix scheduling-while-atomic bug in PCM capture stream 2012-08-16 08:04:07 +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