linux-kernel - Re: [PATCH v2 2/2] mmc: atmel-mci: Release mmc resources on failure in probe

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Message-ID: <CAPDyKFrCSLvRXfqihwTc_68cfRROfA-m4sATL1p84ySqVoPJvw@mail.gmail.com>
Date:	Wed, 24 Sep 2014 10:49:20 +0200
From:	Ulf Hansson <ulf.hansson@...aro.org>
To:	Pramod Gurav <pramod.gurav@...rtplayin.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ludovic Desroches <ludovic.desroches@...el.com>,
	Chris Ball <chris@...ntf.net>,
	linux-mmc <linux-mmc@...r.kernel.org>
Subject: Re: [PATCH v2 2/2] mmc: atmel-mci: Release mmc resources on failure
 in probe

On 23 September 2014 12:20, Pramod Gurav <pramod.gurav@...rtplayin.com> wrote:
> This change takes care of releasing mmc resources on error cases in
> probe function which was missing. Also release timer in remove function.
>
> Cc: Ludovic Desroches <ludovic.desroches@...el.com>
> Cc: Chris Ball <chris@...ntf.net>
> Cc: Ulf Hansson <ulf.hansson@...aro.org>
> Cc: linux-mmc@...r.kernel.org
> Signed-off-by: Pramod Gurav <pramod.gurav@...rtplayin.com>

Thanks! Applied for next.

Kind regards
Uffe

> ---
> Changes since v1: None
>
>  drivers/mmc/host/atmel-mci.c |   11 +++++++++--
>  1 file changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
> index 36212fb..288bcc1 100644
> --- a/drivers/mmc/host/atmel-mci.c
> +++ b/drivers/mmc/host/atmel-mci.c
> @@ -2376,7 +2376,7 @@ static int __init atmci_probe(struct platform_device *pdev)
>         struct resource                 *regs;
>         unsigned int                    nr_slots;
>         int                             irq;
> -       int                             ret;
> +       int                             ret, i;
>
>         regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>         if (!regs)
> @@ -2482,7 +2482,7 @@ static int __init atmci_probe(struct platform_device *pdev)
>                 if (!host->buffer) {
>                         ret = -ENOMEM;
>                         dev_err(&pdev->dev, "buffer allocation failed\n");
> -                       goto err_init_slot;
> +                       goto err_dma_alloc;
>                 }
>         }
>
> @@ -2492,7 +2492,13 @@ static int __init atmci_probe(struct platform_device *pdev)
>
>         return 0;
>
> +err_dma_alloc:
> +       for (i = 0; i < ATMCI_MAX_NR_SLOTS; i++) {
> +               if (host->slot[i])
> +                       atmci_cleanup_slot(host->slot[i], i);
> +       }
>  err_init_slot:
> +       del_timer_sync(&host->timer);
>         if (host->dma.chan)
>                 dma_release_channel(host->dma.chan);
>         free_irq(irq, host);
> @@ -2519,6 +2525,7 @@ static int __exit atmci_remove(struct platform_device *pdev)
>         atmci_readl(host, ATMCI_SR);
>         clk_disable_unprepare(host->mck);
>
> +       del_timer_sync(&host->timer);
>         if (host->dma.chan)
>                 dma_release_channel(host->dma.chan);
>
> --
> 1.7.9.5
>
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