Il 20/09/2014 02:11, Amos Kong ha scritto:
> Conscan complains about g_malloc0() and malloc() return null.
>
> Error: NULL_RETURNS (CWE-476):
> qemu-kvm/qom/object.c:239: returned_null: Function "g_malloc0(gsize)"
> returns null.
> qemu-kvm/qom/object.c:239: var_assigned: Assigning: "ti->class" = null
> return value from "g_malloc0(gsize)".
> qemu-kvm/qom/object.c:249: dereference: Dereferencing a null pointer
> "ti->class".
>
> But if the passed size parameter is >= 1, then we can always get an
> effective pointer, the warning disappears.
The model should handle it:
void *
g_malloc0(size_t n_bytes)
{
void *mem;
__coverity_negative_sink__(n_bytes);
mem = calloc(1, n_bytes == 0 ? 1 : n_bytes);
if (!mem) __coverity_panic__();
return mem;
}
So this patch means your coverity runs are misconfigured.
Paolo
