[U-Boot] [PATCH 2/2] pci: layerscape: Adjust the return value when ls_pcie_addr_valid() fails
Bin Meng
bmeng.cn at gmail.com
Fri Jan 8 10:03:21 CET 2016
When trying to access non-existent/unsupported PCI devices in
ls_pcie_read_config(), when ls_pcie_addr_valid() fails it returns
error code and fills in the result with 0xffffffff manually. But it
really should return zero to upper layer codes.
Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
---
drivers/pci/pcie_layerscape.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/pcie_layerscape.c b/drivers/pci/pcie_layerscape.c
index 58e88ae..99f9c83 100644
--- a/drivers/pci/pcie_layerscape.c
+++ b/drivers/pci/pcie_layerscape.c
@@ -314,7 +314,7 @@ static int ls_pcie_read_config(struct pci_controller *hose, pci_dev_t d,
if (ls_pcie_addr_valid(hose, d)) {
*val = 0xffffffff;
- return -EINVAL;
+ return 0;
}
if (PCI_BUS(d) == hose->first_busno) {
--
1.7.9.5
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