[PATCH v2] PCI: dwc: fix error return code in dw_pcie_host_init()
From: Wang Hai
Date: Tue Nov 17 2020 - 01:40:19 EST
Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.
Fixes: 07940c369a6b ("PCI: dwc: Fix MSI page leakage in suspend/resume")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Wang Hai <wanghai38@xxxxxxxxxx>
---
v1->v2: just add 'ret = xxx'
drivers/pci/controller/dwc/pcie-designware-host.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
index 44c2a6572199..42d8116a4a00 100644
--- a/drivers/pci/controller/dwc/pcie-designware-host.c
+++ b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -392,7 +392,8 @@ 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)) {
+ ret = dma_mapping_error(pci->dev, pp->msi_data);
+ if (ret) {
dev_err(pci->dev, "Failed to map MSI data\n");
pp->msi_data = 0;
goto err_free_msi;
--
2.17.1