On 18/05/2022 12:30, Johan Hovold wrote:
On Fri, May 13, 2022 at 08:26:14PM +0300, Dmitry Baryshkov wrote:If dma mapping fails, dma_mapping_error() will return an error. Propagate it to the dw_pcie_host_init() return value rather than incorrectly returning 0 in this case. Fixes: 07940c369a6b ("PCI: dwc: Fix MSI page leakage in suspend/resume") Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> --- drivers/pci/controller/dwc/pcie-designware-host.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c index 2fa86f32d964..a9a31e9e7b6e 100644 --- a/drivers/pci/controller/dwc/pcie-designware-host.c +++ b/drivers/pci/controller/dwc/pcie-designware-host.c @@ -396,8 +396,9 @@ int dw_pcie_host_init(struct pcie_port *pp) sizeof(pp->msi_msg), DMA_FROM_DEVICE, DMA_ATTR_SKIP_CPU_SYNC); - if (dma_mapping_error(pci->dev, pp->msi_data)) { - dev_err(pci->dev, "Failed to map MSI data\n"); + ret = dma_mapping_error(pci->dev, pp->msi_data); + if (ret) { + dev_err(pci->dev, "Failed to map MSI data: %d\n", ret); pp->msi_data = 0; goto err_free_msi; }This has already been fixed by commit 88557685cd72 ("PCI: dwc: Fix setting error return on MSI DMA mapping failure"), which prevents the series from applying cleanly.
Ack, will rebase and send.
Johan
-- With best wishes Dmitry
