device-manager: Don't allow setting an empty description in the client API

The module implementation treats an empty description as a protocol
error, so we should validate the description already at client side.

diff --git a/src/pulse/ext-device-manager.c b/src/pulse/ext-device-manager.c
index 7fbb7de..9158068 100644 (file)
--- a/src/pulse/ext-device-manager.c
+++ b/src/pulse/ext-device-manager.c
@@ -225,6 +225,7 @@ pa_operation *pa_ext_device_manager_set_device_description(
     PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED);
     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
     PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 14, PA_ERR_NOTSUPPORTED);
+    PA_CHECK_VALIDITY_RETURN_NULL(c, *description, PA_ERR_INVALID);
 
     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);