[PATCH] PCI: rockchip: fix wrong check of pci_scan_root_bus_bridge

Shawn Lin shawn.lin at rock-chips.com
Tue Jul 11 03:15:08 PDT 2017


It's wrong to check the return value of pci_scan_root_bus_bridge
here by using (!err) as 0 means it successfully scans the root
bridge. So the probe process will be terminated mistakenly.

Fixes: ae13cb9b ("PCI: rockchip: Convert PCI scan API to ...")
Cc: Lorenzo Pieralisi <lorenzo.pieralisi at arm.com>
Signed-off-by: Shawn Lin <shawn.lin at rock-chips.com>
---

 drivers/pci/host/pcie-rockchip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/host/pcie-rockchip.c b/drivers/pci/host/pcie-rockchip.c
index 5acf869..7bb9870 100644
--- a/drivers/pci/host/pcie-rockchip.c
+++ b/drivers/pci/host/pcie-rockchip.c
@@ -1483,7 +1483,7 @@ static int rockchip_pcie_probe(struct platform_device *pdev)
 	bridge->swizzle_irq = pci_common_swizzle;
 
 	err = pci_scan_root_bus_bridge(bridge);
-	if (!err)
+	if (err < 0)
 		goto err_free_res;
 
 	bus = bridge->bus;
-- 
1.9.1





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