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net: Only access network devices after init

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In the efi_loader main loop we call eth_rx() occasionally. This rx function
might end up calling into devices that haven't been initialized yet,
potentially resulting in a lot of transfer timeouts.

Instead, let's make sure the ethernet device is actually initialized before
reading from or writing to it.

Signed-off-by: Alexander Graf <agraf@suse.de>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Alexander Graf
2018-03-15 15:07:09 +01:00
committed by Joe Hershberger
parent 17d413b253
commit a532e2f2e5
1 changed files with 2 additions and 2 deletions
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4
net/eth-uclass.c
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@@ -336,7 +336,7 @@ int eth_send(void *packet, int length)
if (!current) if (!current)
return -ENODEV; return -ENODEV;
if (!device_active(current)) if (!eth_is_active(current))
return -EINVAL; return -EINVAL;
ret = eth_get_ops(current)->send(current, packet, length); ret = eth_get_ops(current)->send(current, packet, length);
@@ -359,7 +359,7 @@ int eth_rx(void)
if (!current) if (!current)
return -ENODEV; return -ENODEV;
if (!device_active(current)) if (!eth_is_active(current))
return -EINVAL; return -EINVAL;
/* Process up to 32 packets at one time */ /* Process up to 32 packets at one time */