linux-kernel - Re: [PATCH 04/13] mmc: omap_hsmmc: No need to check DMA channel validity at module remove

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Message-ID: <CAPDyKFrOUOuctSMpx+RFixB_ub=d66YqXEsa7D78gyFeiGiNkQ@mail.gmail.com>
Date:	Thu, 28 May 2015 09:20:18 +0200
From:	Ulf Hansson <ulf.hansson@...aro.org>
To:	Peter Ujfalusi <peter.ujfalusi@...com>
Cc:	Vinod Koul <vinod.koul@...el.com>,
	Tony Lindgren <tony@...mide.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Dan Williams <dan.j.williams@...el.com>,
	dmaengine@...r.kernel.org, linux-serial@...r.kernel.org,
	linux-omap <linux-omap@...r.kernel.org>,
	linux-mmc <linux-mmc@...r.kernel.org>,
	linux-crypto@...r.kernel.org,
	"linux-spi@...r.kernel.org" <linux-spi@...r.kernel.org>,
	linux-media@...r.kernel.org, alsa-devel@...a-project.org
Subject: Re: [PATCH 04/13] mmc: omap_hsmmc: No need to check DMA channel
 validity at module remove

On 26 May 2015 at 15:25, Peter Ujfalusi <peter.ujfalusi@...com> wrote:
> The driver will not probe without valid DMA channels so no need to check
> if they are valid when the module is removed.
>
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>
> CC: Ulf Hansson <ulf.hansson@...aro.org>

Acked-by: Ulf Hansson <ulf.hansson@...aro.org>

Kind regards
Uffe

> ---
>  drivers/mmc/host/omap_hsmmc.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
> index 2cd828f42151..57bb85930f81 100644
> --- a/drivers/mmc/host/omap_hsmmc.c
> +++ b/drivers/mmc/host/omap_hsmmc.c
> @@ -2190,10 +2190,8 @@ static int omap_hsmmc_remove(struct platform_device *pdev)
>         if (host->use_reg)
>                 omap_hsmmc_reg_put(host);
>
> -       if (host->tx_chan)
> -               dma_release_channel(host->tx_chan);
> -       if (host->rx_chan)
> -               dma_release_channel(host->rx_chan);
> +       dma_release_channel(host->tx_chan);
> +       dma_release_channel(host->rx_chan);
>
>         pm_runtime_put_sync(host->dev);
>         pm_runtime_disable(host->dev);
> --
> 2.3.5
>
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