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

[Alan Mikhak]

+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>
> ---
>  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
>