If we try to boot from NET device, NetInitLoop in net.c will be invoked.
If NET device is not installed, eth_get_dev() function will return
eth_current value, which is NULL.
When NetInitLoop is called, "eth_get_dev->enetaddr" will access
restricted memory area and therefore cause hanging.
This issue is found on Tegra30 Cardhu platform after adding
CONFIG_CMD_NET and CONFIG_CMD_DHCP in config header file.
Signed-off-by: Jim Lin <ji...@nvidia.com>
---
net/net.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/net/net.c b/net/net.c
index df94789..7663b9c 100644
--- a/net/net.c
+++ b/net/net.c
@@ -271,7 +271,8 @@ static void NetInitLoop(void)
#endif
env_changed_id = env_id;
}
- memcpy(NetOurEther, eth_get_dev()->enetaddr, 6);
+ if (eth_get_dev())
+ memcpy(NetOurEther, eth_get_dev()->enetaddr, 6);
return;
}
--
1.7.7
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