Re: [PATCH] net: ieee802154: mcr20a: do not leak resources on error path

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Acked-by: Xue Liu <liuxuenetmail@xxxxxxxxx>

On 12 April 2018 at 14:28, Stefan Schmidt <stefan@xxxxxxxxxxxxxxx> wrote:
> We already allocated the device and platform  data at this
> point. Instead of simply return from the probe function we
> need to cleanup the resources first.
>
> Signed-off-by: Stefan Schmidt <stefan@xxxxxxxxxxxxxxx>
> ---
>  drivers/net/ieee802154/mcr20a.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/ieee802154/mcr20a.c b/drivers/net/ieee802154/mcr20a.c
> index 944470d69ba9..de0d7f28a181 100644
> --- a/drivers/net/ieee802154/mcr20a.c
> +++ b/drivers/net/ieee802154/mcr20a.c
> @@ -1309,8 +1309,10 @@ mcr20a_probe(struct spi_device *spi)
>         /* init buf */
>         lp->buf = devm_kzalloc(&spi->dev, SPI_COMMAND_BUFFER, GFP_KERNEL);
>
> -       if (!lp->buf)
> -               return -ENOMEM;
> +       if (!lp->buf) {
> +               ret = -ENOMEM;
> +               goto free_dev;
> +       }
>
>         mcr20a_setup_tx_spi_messages(lp);
>         mcr20a_setup_rx_spi_messages(lp);
> --
> 2.14.3
>
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