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* Request patch to -stable 4.4+ "media: v4l2-mem2mem: always consider OUTPUT queue during poll"
@ 2021-08-12 11:58 Lecopzer Chen
  2021-08-12 13:20 ` Greg KH
  0 siblings, 1 reply; 2+ messages in thread
From: Lecopzer Chen @ 2021-08-12 11:58 UTC (permalink / raw)
  To: stable, gregkh; +Cc: yj.chiang

Hi Greg

Reason:

We found without this, Poll() infinitely wait because OUTPUT queue
will never signaled after last CAPTURE queue is de-queued.
And some buffer can't be popped as expected.


commit id: 566463afdbc43c7744c5a1b89250fc808df03833
subject: "media: v4l2-mem2mem: always consider OUTPUT queue during poll"

This should be applied to 4.4+ without conflict after 
(f1a81afc98e315f4bf600d28f8a19a5655f7cfe0 "[media] m2m: fix bad unlock balance")


Thanks,
Lecopzer

^ permalink raw reply	[flat|nested] 2+ messages in thread
* Re: Request patch to -stable 4.4+ "media: v4l2-mem2mem: always consider OUTPUT queue during poll"
  2021-08-12 11:58 Request patch to -stable 4.4+ "media: v4l2-mem2mem: always consider OUTPUT queue during poll" Lecopzer Chen
@ 2021-08-12 13:20 ` Greg KH
  0 siblings, 0 replies; 2+ messages in thread
From: Greg KH @ 2021-08-12 13:20 UTC (permalink / raw)
  To: Lecopzer Chen; +Cc: stable, yj.chiang

On Thu, Aug 12, 2021 at 07:58:22PM +0800, Lecopzer Chen wrote:
> Hi Greg
> 
> Reason:
> 
> We found without this, Poll() infinitely wait because OUTPUT queue
> will never signaled after last CAPTURE queue is de-queued.
> And some buffer can't be popped as expected.
> 
> 
> commit id: 566463afdbc43c7744c5a1b89250fc808df03833
> subject: "media: v4l2-mem2mem: always consider OUTPUT queue during poll"
> 
> This should be applied to 4.4+ without conflict after 
> (f1a81afc98e315f4bf600d28f8a19a5655f7cfe0 "[media] m2m: fix bad unlock balance")

Applied to 5.4.y, but if you want it to go older, we need backported
versions as it did not apply cleanly.

thanks,

greg k-h

^ permalink raw reply	[flat|nested] 2+ messages in thread
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2021-08-12 11:58 Request patch to -stable 4.4+ "media: v4l2-mem2mem: always consider OUTPUT queue during poll" Lecopzer Chen
2021-08-12 13:20 ` Greg KH

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