[alsa-devel] [PATCH v5 2/4] ALSA: compress: Add function to indicate the stream has gone bad

[Vinod Koul]

On Wed, Apr 20, 2016 at 01:40:01PM +0100, Charles Keepax wrote:
> Currently, the avail IOCTL doesn't pass any error status, which
> means typically on error it simply shows no data available. This
> can lead to situations where user-space is waiting indefinitely
> for data that will never come as the DSP has suffered an
> unrecoverable error.
> 
> Add snd_compr_stop_error which end drivers can call to indicate
> the stream has suffered an unrecoverable error and stop it. The
> avail and poll IOCTLs are then updated to report if the stream is
> in an error state to user-space. Allowing the error to propagate
> out. Processing of the actual snd_compr_stop needs to be deferred
> to a worker thread as the end driver may detect the errors during
> an existing operation callback.

Acked-by: Vinod Koul <vinod.koul at intel.com>

Btw are you patching tinycompress as well to handle EPIPE?

Thanks
-- 
~Vinod