[PATCH v2020.01] tool: ifwitool: The function localtime() can return NULL.

[Tom Rini]

On Fri, Nov 18, 2022 at 11:50:02AM +0300, Mikhail Ilin wrote:

> This will cause the local_time pointer is passed as the 4th argument 
>  to function strftime() to also point to NULL. This result in a
>  segmentation fault. Thus, it's necessary to add a check of the local_time
>  pointer to NULL.
> 
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
> 
> Signed-off-by: Mikhail Ilin <ilin.mikhail.ol at gmail.com>
> Reviewed-by: Simon Glass <sjg at chromium.org>

Applied to u-boot/next, thanks!

-- 
Tom
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