[U-Boot] [PATCH] env: fix crash using default -f -a

[Tom Rini]

On Fri, Oct 05, 2012 at 12:46:10PM +0200, Gerlando Falauto wrote:

> env default -a -f calls env_check_apply on all existing environment
> variables with a NULL value for "newval" as a way of cleaning up.
> This causes string manipulation functions to crash on most architectures.
> So replace a NULL argument with an empty string.
> 
> Reported-By: Stefano Babic <sbabic at denx.de>
> Signed-off-by: Gerlando Falauto <gerlando.falauto at keymile.com>

Applied to u-boot/master, thanks!

-- 
Tom
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