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

Dear Joakim Tjernlund,

In message OFD5ABFC5E.96E88C93-ONC12577C3.00406E0E-C12577C3.00408F11@transmode.se you wrote:

...

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

Maybe not in the current implementation, and not on the architecture you checked. Current doc reads: "If size is 0, then malloc() returns either NULL, or a unique pointer value that can later be successfully passed to free()."

Of course we could return some valid pointer like glibc does, i. e. implement something like

if (size == 0) size = 8;

or so. Do you think that would be better?

Best regards,

Wolfgang Denk