On 24 August 2018 at 17:53, Michael S. Tsirkin <m...@redhat.com> wrote: > On Fri, Aug 24, 2018 at 04:13:18PM +0100, Peter Maydell wrote: >> object_get_canonical_path_component() returns a string which >> must be freed using g_free().
> Like the following? Junyan, could you pls try this one and confirm? > > Signed-off-by: Michael S. Tsirkin <m...@redhat.com> > > diff --git a/backends/hostmem-file.c b/backends/hostmem-file.c > index 2476dcb435..d88125b86e 100644 > --- a/backends/hostmem-file.c > +++ b/backends/hostmem-file.c > @@ -154,11 +154,14 @@ static void file_memory_backend_set_pmem(Object *o, > bool value, Error **errp) > #ifndef CONFIG_LIBPMEM > if (value) { > Error *local_err = NULL; > + char *path = object_get_canonical_path_component(o); > + > error_setg(&local_err, > "Lack of libpmem support while setting the 'pmem=on'" > " of %s '%s'. We can't ensure data persistence.", > object_get_typename(o), > - object_get_canonical_path_component(o)); > + ); > + g_free(path); > error_propagate(errp, local_err); > return; Yep, like that (though I would put the closing ");" on the line with object_get_typename() and delete the trailing comma). thanks -- PMM