From: Sascha Hauer <s.hauer@pengutronix.de>
To: Vasiliy Kulikov <segooon@gmail.com>
Cc: kernel-janitors@vger.kernel.org,
Dan Williams <dan.j.williams@intel.com>,
Linus Walleij <linus.walleij@stericsson.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] dma: imx-dma: fix signedness bug
Date: Mon, 18 Oct 2010 08:02:31 +0000 [thread overview]
Message-ID: <20101018080230.GH28242@pengutronix.de> (raw)
In-Reply-To: <1287327110-9158-1-git-send-email-segooon@gmail.com>
On Sun, Oct 17, 2010 at 06:51:50PM +0400, Vasiliy Kulikov wrote:
> mxdmac->channel was unsigned, so check (imxdmac->channel < 0) for
> failed imx_dma_request_by_prio() made no sence. Explicitly check
> signed values.
>
> Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
> ---
> drivers/dma/imx-dma.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
> index 346be62..75d870f 100644
> --- a/drivers/dma/imx-dma.c
> +++ b/drivers/dma/imx-dma.c
> @@ -335,7 +335,7 @@ static int __init imxdma_probe(struct platform_device *pdev)
>
> imxdmac->imxdma_channel = imx_dma_request_by_prio("dmaengine",
> DMA_PRIO_MEDIUM);
> - if (imxdmac->channel < 0)
> + if ((int)imxdmac->channel < 0)
> goto err_init;
>
> imx_dma_setup_handlers(imxdmac->imxdma_channel,
> --
> 1.7.0.4
>
>
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next prev parent reply other threads:[~2010-10-18 8:02 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-17 14:51 [PATCH] dma: imx-dma: fix signedness bug Vasiliy Kulikov
2010-10-18 8:02 ` Sascha Hauer [this message]
2010-10-19 22:26 ` Dan Williams
2010-10-20 6:35 ` Sascha Hauer
2010-10-20 6:37 ` Sascha Hauer
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