ALSA: line6: Fix racy loopback handling

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The impulse and monitor handling in submit_audio_out_urb() isn't
protected thus this can be racy with the capture stream handling.
This patch extends the range to protect via each stream's spinlock
(now the whole submit_audio_*_urb() are covered), and take the capture
stream lock additionally for the impulse and monitor handling part.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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This commit is contained in:

Takashi Iwai 2015-01-27 12:50:44 +01:00

parent d6ca69d825

commit 3d3ae4454d

2 changed files with 24 additions and 20 deletions

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20

sound/usb/line6/capture.c

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24

sound/usb/line6/playback.c

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