On 25.01.2016 16:36, Tomas Henzl wrote:
> On 23.1.2016 01:41, Alexey Khoroshilov wrote:
>> mpt_lan_sdu_send() and mpt_lan_post_receive_buckets() do not check
>> if mapping dma memory succeed.
>> The patch adds the checks and failure handling.
>>
>> Found by Linux Driver Verification project (linuxtesting.org).
>>
>> Signed-off-by: Alexey Khoroshilov <khoroshilov@xxxxxxxxx>
>> ---
>> drivers/message/fusion/mptlan.c | 14 ++++++++++++++
>> 1 file changed, 14 insertions(+)
>>
>> diff --git a/drivers/message/fusion/mptlan.c b/drivers/message/fusion/mptlan.c
>> index cbe96072a6cc..3b6c8a755713 100644
>> --- a/drivers/message/fusion/mptlan.c
>> +++ b/drivers/message/fusion/mptlan.c
>> @@ -734,6 +734,12 @@ mpt_lan_sdu_send (struct sk_buff *skb, struct net_device *dev)
>>
>> dma = pci_map_single(mpt_dev->pcidev, skb->data, skb->len,
>> PCI_DMA_TODEVICE);
>> + if (pci_dma_mapping_error(mpt_dev->pcidev, dma)) {
>> + netif_stop_queue(dev);
>
> Hi Alexey,
> isn't a mpt_put_msg_frame needed here ?
> and a similar de-alloc in next chunk too?
> -tms
Hi Tomas,
You are right, thank you!
I'll resend the patch.
--
Alexey
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