On Fri, Jan 27, 2017 at 04:49:40PM +0530, Shailendra Verma wrote:
> of_match_device could return NULL, and so can cause a NULL
> pointer dereference later.
> 
> Signed-off-by: Shailendra Verma <shailendr...@samsung.com>
> ---
>  drivers/net/ethernet/mediatek/mtk_eth_soc.c |    4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c 
> b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
> index 4a62ffd..4495b7b 100644
> --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
> +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
> @@ -2369,6 +2369,10 @@ static int mtk_probe(struct platform_device *pdev)
>       int i;
>  
>       match = of_match_device(of_mtk_match, &pdev->dev);
> +     if (!match) {
> +             dev_err(&pdev->dev, "Error: No device match found\n");
> +             return -ENODEV;
> +     }
>       soc = (struct mtk_soc_data *)match->data;
>  
>       eth = devm_kzalloc(&pdev->dev, sizeof(*eth), GFP_KERNEL);
> -- 

Hello

You could use of_device_get_match_data() and simplifiy code

Regards
Corentin Labbe

Reply via email to