Re: [PATCH v2] PCI: endpoint: Clear BAR before freeing its space

From: Kishon Vijay Abraham I
Date: Fri May 24 2019 - 04:55:00 EST




On 24/05/19 5:20 AM, Alan Mikhak wrote:
> +Bjorn Helgaas, +Gustavo Pimentel, +Wen Yang, +Kangjie Lu
>
>
> On Thu, May 23, 2019 at 2:57 PM Alan Mikhak <alan.mikhak@xxxxxxxxxx> wrote:
>>
>> Associated pci_epf_bar structure is needed in pci_epc_clear_bar() but
>> would be cleared in pci_epf_free_space(), if called first, and BAR
>> would not get cleared.
>>
>> Signed-off-by: Alan Mikhak <alan.mikhak@xxxxxxxxxx>

Acked-by: Kishon Vijay Abraham I <kishon@xxxxxx>
>> ---
>> drivers/pci/endpoint/functions/pci-epf-test.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c
>> index 27806987e93b..f81a219dde5b 100644
>> --- a/drivers/pci/endpoint/functions/pci-epf-test.c
>> +++ b/drivers/pci/endpoint/functions/pci-epf-test.c
>> @@ -381,8 +381,8 @@ static void pci_epf_test_unbind(struct pci_epf *epf)
>> epf_bar = &epf->bar[bar];
>>
>> if (epf_test->reg[bar]) {
>> - pci_epf_free_space(epf, epf_test->reg[bar], bar);
>> pci_epc_clear_bar(epc, epf->func_no, epf_bar);
>> + pci_epf_free_space(epf, epf_test->reg[bar], bar);
>> }
>> }
>> }
>> --
>> 2.7.4
>>