[U-Boot] [PATCH] net: eth-uclass: ignore unavailable devices

[Michael Walle]

device_probe() may fail in which case the seq_id will be -1. Don't
display these devices during startup. While this is only a cosmetic
change, the return value of eth_initialize() will also change to the
actual number of available devices. The return value is only used in
spl_net to decide whether there are any devices to boot from. So
returning only available devices is also more correct in that case.

Signed-off-by: Michael Walle <michael at walle.cc>
---
 net/eth-uclass.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/net/eth-uclass.c b/net/eth-uclass.c
index 3bd98b01ad..acd59216e3 100644
--- a/net/eth-uclass.c
+++ b/net/eth-uclass.c
@@ -420,20 +420,25 @@ int eth_initialize(void)
 
 		bootstage_mark(BOOTSTAGE_ID_NET_ETH_INIT);
 		do {
-			if (num_devices)
-				printf(", ");
+			if (dev->seq != -1) {
+				if (num_devices)
+					printf(", ");
 
-			printf("eth%d: %s", dev->seq, dev->name);
+				printf("eth%d: %s", dev->seq, dev->name);
 
-			if (ethprime && dev == prime_dev)
-				printf(" [PRIME]");
+				if (ethprime && dev == prime_dev)
+					printf(" [PRIME]");
+			}
 
 			eth_write_hwaddr(dev);
 
+			if (dev->seq != -1)
+				num_devices++;
 			uclass_next_device_check(&dev);
-			num_devices++;
 		} while (dev);
 
+		if (!num_devices)
+			printf("No ethernet found.\n");
 		putc('\n');
 	}
 
-- 
2.20.1