0da41187df
g_malloc/g_malloc0/g_realloc only return NULL if the size is 0; we do not need to cover that in the model, and so far have expected __coverity_alloc__ to model a non-NULL return value. But that apparently does not work anymore, so add some extra conditionals that invoke __coverity_panic__ for NULL pointers. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>