[PATCH 1/1] dma: imx-sdma: buf_tail should be initialize in prepare function

[Shawn Guo]

On Thu, May 24, 2012 at 11:27:00AM +0800, Richard Zhao wrote:
> > root at linaro-developer:~# aplay audio8k16S.wav
> > Playing WAVE 'audio8k16S.wav' : Signed 16 bit Little Endian, Rate 8000 Hz, Stere
> > o
> > ^Z
> > [1]+  Stopped                 aplay audio8k16S.wav
> > root at linaro-developer:~# fg
> > aplay audio8k16S.wav
> > underrun!!! (at least 2034.382 ms long)
> Does the audio playback recover? Without the patch, sometimes the
> playback will have distortion and play too fast.
> 
No, it does not recover.

-- 
Regards,
Shawn