* Pavel Machek [off-list ref] [200501 20:32]:

quoted

+static struct gsm_dlci *gsd_dlci_get(struct gsm_serdev *gsd, int line,
+				     bool allocate)
+{
+	struct gsm_mux *gsm;
+	struct gsm_dlci *dlci;
+
+	if (!gsd || !gsd->gsm)
+		return ERR_PTR(-ENODEV);
+
+	gsm = gsd->gsm;
+
+	if (line < 1 || line >= 63)
+		return ERR_PTR(-EINVAL);
+
+	mutex_lock(&gsm->mutex);

...

quoted

+	dlci = gsm_dlci_alloc(gsm, line);
+	if (!dlci) {
+		gsm = ERR_PTR(-ENOMEM);
+		goto unlock;

dlci = , or you get nice crash.

Ah thanks yeah we return dlci and need to set dlci instead:

	if (!dlci) {
		dlci = ERR_PTR(-ENOMEM);
		goto unlock;
	}

Regards,

Tony