diff options
| author | Jim Lin <jilin@nvidia.com> | 2013-05-17 17:41:03 +0800 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-06-19 08:32:44 -0400 |
| commit | 7315cfd9e1922ee1c3c5f016e5a3b16199122172 (patch) | |
| tree | d152589def2062441c5d6fdb02c9d15f9f631eac /net | |
| parent | 2f998071254d566c71c34ef013aef1d9d0ec0fa3 (diff) | |
NET: Fix system hanging if NET device is not installed
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 <jilin@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/net.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/net.c b/net/net.c index df94789de95..7663b9cd6c9 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; } |