[PATCH] PCI: rzg3s-host: Treat link-down as -ENODEV instead of error

[John Madieu]

rzg3s_pcie_host_init() failing to establish a PCIe link does not
necessarily indicate a hardware or driver error; it may simply mean no
card is inserted. Demote the message from dev_err_probe() to dev_info()
and return -ENODEV so the driver defers gracefully rather than printing
a spurious error.

Signed-off-by: John Madieu <john.madieu.xa@xxxxxxxxxxxxxx>
---
 drivers/pci/controller/pcie-rzg3s-host.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/controller/pcie-rzg3s-host.c b/drivers/pci/controller/pcie-rzg3s-host.c
index bfc210e696ed..03be10aa5b54 100644
--- a/drivers/pci/controller/pcie-rzg3s-host.c
+++ b/drivers/pci/controller/pcie-rzg3s-host.c
@@ -1653,9 +1653,10 @@ rzg3s_pcie_host_setup(struct rzg3s_pcie_host *host,
 	if (ret)
 		return dev_err_probe(dev, ret, "Failed to init IRQ domain\n");
 
-	ret = rzg3s_pcie_host_init(host);
-	if (ret) {
-		dev_err_probe(dev, ret, "Failed to initialize the HW!\n");
+	/* Failure to get a link might just be that no cards are inserted */
+	if (rzg3s_pcie_host_init(host)) {
+		dev_info(dev, "PCIe link down!\n");
+		ret = -ENODEV;
 		goto teardown_irqdomain;
 	}
 
-- 
2.25.1