linux-kernel - Re: [PATCH] KVM: PPC: Book3S HV: add of_node

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Message-ID: <20180718062907.GB27453@fergus>
Date:   Wed, 18 Jul 2018 16:29:07 +1000
From:   Paul Mackerras <paulus@...abs.org>
To:     Nicholas Mc Guire <hofrat@...dl.org>
Cc:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Michael Ellerman <mpe@...erman.id.au>, kvm-ppc@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] KVM: PPC: Book3S HV: add of_node_put() in success path

On Sat, Jul 07, 2018 at 08:53:07AM +0200, Nicholas Mc Guire wrote:
>  The call to of_find_compatible_node() is returning a pointer with
> incremented refcount so it must be explicitly decremented after the
> last use. As here it is only being used for checking of node presence
> but the result is not actually used in the success path it can be
> dropped immediately.
> 
> Signed-off-by: Nicholas Mc Guire <hofrat@...dl.org>
> Fixes: commit f725758b899f ("KVM: PPC: Book3S HV: Use OPAL XICS emulation on POWER9")

Thanks, patch applied to my kvm-ppc-next branch.

Paul.