linux-kernel - Re: [PATCH] PCI: rcar: Fix runtime PM imbalance in rcar_pcie_ep

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Message-ID: <CAMuHMdXAW5jeUBQzK84DMbUqhG+NyD1V=Spci2RYahw_X_m12w@mail.gmail.com>
Date:   Mon, 21 Jun 2021 13:58:01 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Dinghao Liu <dinghao.liu@....edu.cn>
Cc:     Kangjie Lu <kjlu@....edu>,
        Marek Vasut <marek.vasut+renesas@...il.com>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Rob Herring <robh@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        linux-pci <linux-pci@...r.kernel.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] PCI: rcar: Fix runtime PM imbalance in rcar_pcie_ep_probe

On Thu, Apr 8, 2021 at 9:24 AM Dinghao Liu <dinghao.liu@....edu.cn> wrote:
> pm_runtime_get_sync() will increase the runtime PM counter
> even it returns an error. Thus a pairing decrement is needed
> to prevent refcount leak. Fix this by replacing this API with
> pm_runtime_resume_and_get(), which will not change the runtime
> PM counter on error.
>
> Signed-off-by: Dinghao Liu <dinghao.liu@....edu.cn>

Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds