[U-Boot] printenv show garbage on out-of-memory conditions

[Tom Rini]

On Fri, Sep 28, 2012 at 05:00:13AM -0000, Maxime Larocque wrote:

> Hello,
> 
> In common/cmd_nvedit.c, en env_print(), the wrong type is used for
> len. hexport_r() returns -1 on error (like OOM), which is converted to
> 0xffffffff when put in an unsigned. Said value is obviously bigger
> then 0, and as a result an uninitialized string is then displayed.
> Other usages of hexport_r() in the code correctly uses ssize_t to keep
> its return value.

Applied to u-boot/master, with some minor fixups for application.
Thanks!

-- 
Tom
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