net: Change return codes from net/eth.c to use errorno constants
Many functions returned -1 previously. Change them to return appropriate error
codes.
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reported-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/net/eth.c b/net/eth.c
index 84919e0..9ad15cd 100644
--- a/net/eth.c
+++ b/net/eth.c
@@ -227,7 +227,7 @@
/* No device */
if (!eth_devices)
- return -1;
+ return -ENODEV;
for (cur = eth_devices; cur->next != eth_devices && cur->next != dev;
cur = cur->next)
@@ -235,7 +235,7 @@
/* Device not found */
if (cur->next != dev)
- return -1;
+ return -ENODEV;
cur->next = dev->next;
@@ -368,7 +368,7 @@
if (!eth_current) {
puts("No ethernet found.\n");
- return -1;
+ return -ENODEV;
}
/* Sync environment with network devices */
@@ -397,7 +397,7 @@
eth_try_another(0);
} while (old_current != eth_current);
- return -1;
+ return -ETIMEDOUT;
}
void eth_halt(void)
@@ -413,7 +413,7 @@
int eth_send(void *packet, int length)
{
if (!eth_current)
- return -1;
+ return -ENODEV;
return eth_current->send(eth_current, packet, length);
}
@@ -421,7 +421,7 @@
int eth_rx(void)
{
if (!eth_current)
- return -1;
+ return -ENODEV;
return eth_current->recv(eth_current);
}