From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Warren <swarren@wwwdotorg.org>
Date: Wed, 05 Jun 2013 09:00:09 -0600
Subject: [U-Boot] [PATCH 1/1 RESEND] NET: Fix system hanging if NET
 device is not installed
In-Reply-To: <1370416043-4315-1-git-send-email-jilin@nvidia.com>
References: <1370416043-4315-1-git-send-email-jilin@nvidia.com>
Message-ID: <51AF5279.5090700@wwwdotorg.org>
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To: u-boot@lists.denx.de

On 06/05/2013 01:07 AM, Jim Lin wrote:
> 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.

Oh, you didn't send this patch to anyone, just the mailing list. I added
the net maintainer to Cc so he'll see this patch.

BTW, this is a critical bugfix, to avoid hangs without any USB Ethernet
device attached.