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

21 Oct 2010

      Wolfgang Denk wd@denx.de wrote on 2010/10/21 13:32:54:
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Dear Joakim Tjernlund,
In message <OF9263CF56.48468959-ONC12577C3.003E4D93-C12577C3.
003ECAD7@transmode.se> you wrote:
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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.
Yes, but not very useful. Glibc does not return NULL