basic: change read_one_line_file() to return number of bytes read

Change detect_vm_xen_dom0() to match new usage.
2019-02-02 00:25:57 +02:00
parent 118dccc948
commit d6062e3b4f
2 changed files with 2 additions and 4 deletions
@@ -202,7 +202,7 @@ static int detect_vm_xen_dom0(void) {
        r = read_one_line_file(PATH_FEATURES, &domcap);
        if (r < 0 && r != -ENOENT)
                return r;
-        if (r == 0) {
+        if (r >= 0) {
                unsigned long features;

                /* Here, we need to use sscanf() instead of safe_atoul()