[U-Boot] [PATCH] fw_env: Add missing write failure check

[Tom Rini]

On Wed, Jun 12, 2019 at 03:27:55PM +0100, Alex Kiernan wrote:

> If flash_write fails, whilst we propagate this up to our caller, we need
> to avoid swapping in the new file (if we're on a filesystem) in this
> case.
> 
> Fixes: dbc34323796b ("tools: env: Implement atomic replace for filesystem")
> Signed-off-by: Alex Kiernan <alex.kiernan at gmail.com>

Applied to u-boot/master, thanks!

-- 
Tom
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