[U-Boot] [PATCH] Prevent malloc with size 0

[Wolfgang Denk]

Dear Joakim Tjernlund,

In message <OF9263CF56.48468959-ONC12577C3.003E4D93-C12577C3.003ECAD7 at transmode.se> you wrote:
>
> > -  if ((long)bytes < 0) return 0;
> > +  if ((long)bytes <= 0) return 0;
> 
> I think you should return some impossible ptr value =! NULL
> Size 0 not really an error. 

It is legal for malloc() to return NULL in case of size==0,
and for the sake of simplicity I recommend we do just that.

Best regards,

Wolfgang Denk

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