[PATCH 1/4] usb: phy: Fix deferred probing

[balbi@ti.com (Felipe Balbi)]

On Thu, Jan 08, 2015 at 06:32:27PM +0200, Grygorii.Strashko at linaro.org wrote:
> Hi,
> 
> On 01/07/2015 06:41 AM, Olof Johansson wrote:
> > On Tue, Jan 6, 2015 at 7:45 AM, Maxime Ripard
> > <maxime.ripard@free-electrons.com> wrote:
> >> Commit 1290a958d48e ("usb: phy: propagate __of_usb_find_phy()'s error on
> >> failure") actually broke the deferred probing mechanism, since it now returns
> >> EPROBE_DEFER only when the try_module_get call fails, but not when the phy
> >> lookup does.
> >>
> >> All the other similar functions seem to return ENODEV when try_module_get
> >> fails, and the error code of either __usb_find_phy or __of_usb_find_phy
> >> otherwise.
> >>
> >> In order to have a consistent behaviour, and a meaningful EPROBE_DEFER, always
> >> return EPROBE_DEFER when __(of_)usb_find_phy fails to look up the requested
> >> phy, that will be propagated by the caller, and ENODEV if try_module_get fails.
> >>
> > 
> > Fixes:  1290a958d48e ("usb: phy: propagate __of_usb_find_phy()'s error
> > on failure")
> > 
> >> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
> > 
> > This also fixes USB on tegra/trimslice here.
> > 
> > Tested-by: Olof Johansson <olof@lixom.net>
> > 
> > Given that the regression went in during 3.19 merge window, this
> > should go in as a fix during -rc, please.
> 
> 1) Pls note, there is a duplication patch https://www.mail-archive.com/linux-usb at vger.kernel.org/msg53893.html
> but this one is more correct as for me. 
> 
> 2) This patch fixes USB regression on Keystone 2, so
> 
>  Tested-by: Grygorii Strashko <grygorii.strashko@linaro.org>

Are we asking that I drop Thierry's Patch or just apply the other hunks?

-- 
balbi
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