tools/libxl: Fix memory leak in sched_domain_output()

Coverity ID: 1055904

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
CC: Keir Fraser <keir@xen.org>
CC: Jan Beulich <JBeulich@suse.com>
(cherry picked from commit 0792426b79)

Conflicts:
	tools/libxl/xl_cmdimpl.c

tools/libxl/xl_cmdimpl.c

@@ -5003,6 +5003,7 @@ static int sched_domain_output(libxl_scheduler sched, int (*output)(int),
     poolinfo = libxl_list_cpupool(ctx, &n_pools);
     if (!poolinfo) {
         fprintf(stderr, "error getting cpupool info\n");
+        libxl_dominfo_list_free(info, nb_domain);
         return -ERROR_NOMEM;
     }
 
@@ -5024,6 +5025,7 @@ static int sched_domain_output(libxl_scheduler sched, int (*output)(int),
     }
     if (poolinfo)
         libxl_cpupoolinfo_list_free(poolinfo, n_pools);
+    libxl_dominfo_list_free(info, nb_domain);
     return 0;
 }