linux-kernel - Re: [PATCH V14 03/24] mmc: core: Do not leave the block driver in a suspended state

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Message-ID: <CAPDyKFp1p4zwGvJV1SePHNcnR+_CL6F0=o4ge_ZAXmOSz2HEOQ@mail.gmail.com>
Date:   Thu, 23 Nov 2017 19:12:58 +0100
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Adrian Hunter <adrian.hunter@...el.com>
Cc:     linux-mmc <linux-mmc@...r.kernel.org>,
        linux-block <linux-block@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Bough Chen <haibo.chen@....com>,
        Alex Lemberg <alex.lemberg@...disk.com>,
        Mateusz Nowak <mateusz.nowak@...el.com>,
        Yuliy Izrailov <Yuliy.Izrailov@...disk.com>,
        Jaehoon Chung <jh80.chung@...sung.com>,
        Dong Aisheng <dongas86@...il.com>,
        Das Asutosh <asutoshd@...eaurora.org>,
        Zhangfei Gao <zhangfei.gao@...il.com>,
        Sahitya Tummala <stummala@...eaurora.org>,
        Harjani Ritesh <riteshh@...eaurora.org>,
        Venu Byravarasu <vbyravarasu@...dia.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Christoph Hellwig <hch@....de>
Subject: Re: [PATCH V14 03/24] mmc: core: Do not leave the block driver in a
 suspended state

On 21 November 2017 at 14:42, Adrian Hunter <adrian.hunter@...el.com> wrote:
> The block driver must be resumed if the mmc bus fails to suspend the card.
>
> Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>

Thanks, applied for fixes and added a stable tag (I think v3.19+ is
the first one we can pick, else some other manual back porting is
needed).

Kind regards
Uffe

> ---
>  drivers/mmc/core/bus.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
> index a4b49e25fe96..7586ff2ad1f1 100644
> --- a/drivers/mmc/core/bus.c
> +++ b/drivers/mmc/core/bus.c
> @@ -157,6 +157,9 @@ static int mmc_bus_suspend(struct device *dev)
>                 return ret;
>
>         ret = host->bus_ops->suspend(host);
> +       if (ret)
> +               pm_generic_resume(dev);
> +
>         return ret;
>  }
>
> --
> 1.9.1
>