[Alsasrc] System hang once disconnect the device, while pipeline is alive

[pawan.ec]

Hi All,

I am gettign this behaviour:

1. Create pipeline containing the AlsaSrc, Caps, and alsasink.
2. set state to Playing
3. disconnect device (i.e. alsasrc, which is something like hw:2,0)

Now if i get the sound card removal event in time i set the pipeline state
to null and everything works fine.
But if it is delayed then my app hangs (at the
gst_element_set_state(m_AudioPipeline, GST_STATE_NULL)) and below is the
continuous error which i am getting after that.

SNDRV_PCM_IOCTL_PREPARE failed (-19): No such device

Please help, i am very much new to audio so not getting the clear idea.




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