[U-Boot] [U-Boot, v2] env: throw an error when an empty key is used

[Tom Rini]

On Sun, Apr 28, 2013 at 11:31:57AM -0000, Lucian Cojocar wrote:

> If the environment contains an entry like "=value" "\0" we should throw
> an error when parsing the environment. Otherwise, U-Boot will enter in
> an infinite loop.
> 
> Signed-off-by: Lucian Cojocar <cojocar at gmail.com>

Applied to u-boot/master, thanks!

-- 
Tom
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