fix statistics with aliased interfaces

For virtual interfaces created using the ifcfg-ethN:X scripts the
ifconfig and netstat -i report statistics of the last real adapter
listed in /proc/dev/net.

URL: https://bugzilla.redhat.com/143981

lib/interface.c

@@ -364,9 +364,10 @@ static int if_readlist_proc(const char *target)
 	s = get_name(name, buf);
 	ife = if_cache_add(name);
 	get_dev_fields(s, ife);
-	ife->statistics_valid = 1;
-	if (target && !strcmp(target,name))
+	if (target && !strcmp(target,name)) {
+		ife->statistics_valid = 1;
 		break;
+	}
     }
     if (ferror(fh)) {
 	perror(_PATH_PROCNET_DEV);