linux-kernel - Re: linux-next: manual merge of the usb tree with the usb.current tree

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Date:   Mon, 23 Apr 2018 10:30:11 +0200
From:   Johan Hovold <johan@...nel.org>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Greg KH <greg@...ah.com>,
        Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Johan Hovold <johan@...nel.org>
Subject: Re: linux-next: manual merge of the usb tree with the usb.current
 tree

On Mon, Apr 23, 2018 at 01:04:44PM +1000, Stephen Rothwell wrote:
> Hi Greg,
> 
> Today's linux-next merge of the usb tree got a conflict in:
> 
>   drivers/usb/core/hcd.c
> 
> between commit:
> 
>   63cb03f5c11e ("usb: core: split usb_phy_roothub_{init,alloc}")
> 
> from the usb.current tree and commit:
> 
>   bc40f5341741 ("USB: core: hcd: drop support for legacy phys")
> 
> from the usb tree.
> 
> I fixed it up (see below - though I am not sure what happens to the
> phy_roothub allocation when usb_phy_roothub_init fails) and can carry
> the fix as necessary.

The resolution looks correct to me. The allocations done by
usb_phy_roothub_alloc() are device managed and would be freed on probe
failures (or unbind) so not explicit dealloc is needed. It might be a
good idea to indicate that in the function name however (i.e. to add a
devm_ prefix).

Johan