linux-kernel - Re: [PATCH] spi/sirf: fix error propagation in spi_sirfsoc

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Date:	Thu, 6 Jun 2013 09:36:43 +0800
From:	Barry Song <21cnbao@...il.com>
To:	Alexey Khoroshilov <khoroshilov@...ras.ru>
Cc:	Barry Song <baohua.song@....com>, ldv-project@...uxtesting.org,
	linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>,
	Grant Likely <grant.likely@...aro.org>,
	spi-devel-general@...ts.sourceforge.net,
	linux-arm-kernel@...ts.infradead.org,
	DL-SHA-WorkGroupLinux <workgroup.linux@....com>
Subject: Re: [PATCH] spi/sirf: fix error propagation in spi_sirfsoc_probe()

2013/6/6 Alexey Khoroshilov <khoroshilov@...ras.ru>:
> If pinctrl_get_select_default() fails, spi_sirfsoc_probe()
> returns IS_ERR(sspi->p) instead of PTR_ERR(sspi->p).
>
> Found by Linux Driver Verification project (linuxtesting.org).
>
> Signed-off-by: Alexey Khoroshilov <khoroshilov@...ras.ru>

Acked-by: Barry Song <Baohua.Song@....com>

> ---
>  drivers/spi/spi-sirf.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/spi/spi-sirf.c b/drivers/spi/spi-sirf.c
> index 0808cd5..94c3920 100644
> --- a/drivers/spi/spi-sirf.c
> +++ b/drivers/spi/spi-sirf.c
> @@ -559,9 +559,10 @@ static int spi_sirfsoc_probe(struct platform_device *pdev)
>         sspi->bitbang.master->dev.of_node = pdev->dev.of_node;
>
>         sspi->p = pinctrl_get_select_default(&pdev->dev);
> -       ret = IS_ERR(sspi->p);
> -       if (ret)
> +       if (IS_ERR(sspi->p)) {
> +               ret = PTR_ERR(sspi->p);
>                 goto free_master;
> +       }
>
>         sspi->clk = clk_get(&pdev->dev, NULL);
>         if (IS_ERR(sspi->clk)) {
> --
> 1.8.1.2
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