tree 2e491dc66f9805f1872e2c7a141dc38da30f4d81
parent 3d3ae4454deb94bbad9ad0b2b559cbf6c0db4ec2
author Takashi Iwai <tiwai@suse.de> 1422371846 +0100
committer Takashi Iwai <tiwai@suse.de> 1422426150 +0100

ALSA: line6: Clear prev_fbuf and prev_fsize properly

Clearing prev_fsize in line6_pcm_acquire() is pretty racy.
This can be called at any time while the stream is being played.
Rather better to clear prev_fbuf and prev_fsize at the proper place
like the stream stop for capture, and just after copying the monitor /
impulse data inside the spinlock.

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