OVAL/probes/fwupdsecattr: Fix the probe initialization

Also don't fail the test just because oscap returns code is non-zero
as we want to clean up the D-Bus mock in any case.

Author: evgenyz

src/OVAL/probes/unix/linux/fwupdsecattr_probe.c

@@ -292,11 +292,6 @@ int fwupdsecattr_probe_main(probe_ctx *ctx, void *arg)
 	const char *hsi_result_str;
 	uint64_t hsi_result = UINT64_MAX;
 
-	/* arg is NULL if regex compilation failed */
-	if (arg == NULL) {
-		return PROBE_EINIT;
-	}
-
 	probe_in = probe_ctx_getobject(ctx);
 	if (probe_in == NULL)
 		return PROBE_ENOOBJ;

tests/probes/fwupdsecattr/test_probes_fwupdsecattr_mock.sh

@@ -18,7 +18,7 @@ function test_probes_fwupdsecattr {
     [ -f $RF ] && rm -f $RF
 
     init_dbus_mock $DBUS_MOCK_NAME
-    $OSCAP oval eval --results $RF $DF 2>$stderr
+    $OSCAP oval eval --results $RF $DF 2>$stderr || true
     clean_dbus_mock $DBUS_MOCK_NAME
 
     if [ -f $RF ]; then