On Mon, 16 Nov 2020 21:50:23 +0800 Wang Hai wrote:
>
>
> Fix to return a negative error code from the error handling
> case instead of 0, as done elsewhere in this function.
good catch.
>
> Fixes: 07940c369a6b ("PCI: dwc: Fix MSI page leakage in suspend/resume")
> Reported-by: Hulk Robot <hul...@huawei.com>
> Signed-off-by: Wang Hai <wangha...@huawei.com>
> ---
> drivers/pci/controller/dwc/pcie-designware-host.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c
> b/drivers/pci/controller/dwc/pcie-designware-host.c
> index 44c2a6572199..7b3c91c6ae02 100644
> --- a/drivers/pci/controller/dwc/pcie-designware-host.c
> +++ b/drivers/pci/controller/dwc/pcie-designware-host.c
> @@ -395,6 +395,7 @@ int dw_pcie_host_init(struct pcie_port *pp)
> if (dma_mapping_error(pci->dev, pp->msi_data)) {
> dev_err(pci->dev, "Failed to map MSI data\n");
> pp->msi_data = 0;
> + ret = -ENOMEM;
what about use the return value of dma_maping_error()? I.E
ret = dma_mapping_error()
if (ret) {
....
}
> goto err_free_msi;
> }
> } else {
> --
> 2.17.1
>
