[U-Boot] [U-Boot, v5, 14/26] cmd: mtdparts: fix mtdparts variable presence confusion in mtdparts_init

[Tom Rini]

On Tue, Jul 12, 2016 at 08:28:22PM +0200, Ladislav Michl wrote:

> A private buffer is used to read mtdparts variable from non-relocated
> environment. A pointer to that buffer is returned unconditionally,
> confusing later test for variable presence in the environment.
> Fix it by returning NULL when getenv_f fails.
> 
> Signed-off-by: Ladislav Michl <ladis at linux-mips.org>

Applied to u-boot/master, thanks!

-- 
Tom
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