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

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Hello.


On 04/12/2018 03:28 PM, Xue Liu wrote:
> Acked-by: Xue Liu <liuxuenetmail@xxxxxxxxx>

Thanks for the review, Xue.

>
> 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
>>
This patch has been applied to the wpan tree and will be
part of the next pull request to net.

regards
Stefan Schmidt
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