linux-kernel - Re: [ 080/262] usb: gadget: dummy

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Date:	Sun, 30 Sep 2012 14:30:54 +0200
From:	Sebastian Andrzej Siewior <sebastian@...akpoint.cc>
To:	Ben Hutchings <ben@...adent.org.uk>
Cc:	Felipe Balbi <balbi@...com>, linux-kernel@...r.kernel.org,
	stable@...r.kernel.org, alan@...rguk.ukuu.org.uk,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [ 080/262] usb: gadget: dummy_hcd: fixup error probe path

On Sat, Sep 29, 2012 at 09:01:15PM +0200, Ben Hutchings wrote:
> > This is a problem since 448b6eb1 ("USB: Make sure to fetch the BOS desc
> > for roothubs.) if used in USB3 mode because dummy does not provide this
> > descriptor and explodes later.
> [...]
> 
> i.e. for 3.5 (as noted in the cc: stable line).  But I don't see why
> this isn't needed for earlier kernel versions.  The same broken error
> handling is present.

Hmmm. The error handling is broken since day 1 that is cdfcbd2c4a ("usb:
gadget: dummy_hcd: use the shared_hcd infrastructure") / v3.1-rc1.
Prior v3.5 it is unlikely that something fails here, I never noticed it.
However you are right: wrong is wrong and thefore it should be picked up to
v3.1.

> Ben.

Sebastian
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