iface-modem: explicitly disconnect bearer before removing it

https://bugs.freedesktop.org/show_bug.cgi?id=90408

src/mm-bearer-list.c

@@ -105,15 +105,6 @@ mm_bearer_list_delete_bearer (MMBearerList *self,
 {
     GList *l;
 
-    if (!g_str_has_prefix (path, MM_DBUS_BEARER_PREFIX)) {
-        g_set_error (error,
-                     MM_CORE_ERROR,
-                     MM_CORE_ERROR_INVALID_ARGS,
-                     "Cannot delete bearer: invalid path '%s'",
-                     path);
-        return FALSE;
-    }
-
     for (l = self->priv->bearers; l; l = g_list_next (l)) {
         if (g_str_equal (path, mm_base_bearer_get_path (MM_BASE_BEARER (l->data)))) {
             g_object_unref (l->data);
@@ -169,6 +160,20 @@ mm_bearer_list_find_by_properties (MMBearerList *self,
     return NULL;
 }
 
+MMBaseBearer *
+mm_bearer_list_find_by_path (MMBearerList *self,
+                             const gchar *path)
+{
+    GList *l;
+
+    for (l = self->priv->bearers; l; l = g_list_next (l)) {
+        if (g_str_equal (path, mm_base_bearer_get_path (MM_BASE_BEARER (l->data))))
+            return g_object_ref (l->data);
+    }
+
+    return NULL;
+}
+
 /*****************************************************************************/
 
 typedef struct {

src/mm-bearer-list.h

@@ -74,6 +74,8 @@ void mm_bearer_list_foreach (MMBearerList *self,
 
 MMBaseBearer *mm_bearer_list_find_by_properties (MMBearerList *self,
                                                  MMBearerProperties *properties);
+MMBaseBearer *mm_bearer_list_find_by_path (MMBearerList *self,
+                                           const gchar *path);
 
 void     mm_bearer_list_disconnect_all_bearers        (MMBearerList *self,
                                                        GAsyncReadyCallback callback,

src/mm-iface-modem.c

@@ -760,11 +760,14 @@ typedef struct {
     MMIfaceModem *self;
     MMBearerList *list;
     gchar *bearer_path;
+    MMBaseBearer *bearer;
 } HandleDeleteBearerContext;
 
 static void
 handle_delete_bearer_context_free (HandleDeleteBearerContext *ctx)
 {
+    if (ctx->bearer)
+        g_object_unref (ctx->bearer);
     g_object_unref (ctx->skeleton);
     g_object_unref (ctx->invocation);
     g_object_unref (ctx->self);
@@ -774,6 +777,26 @@ handle_delete_bearer_context_free (HandleDeleteBearerContext *ctx)
     g_free (ctx);
 }
 
+static void
+delete_bearer_disconnect_ready (MMBaseBearer *bearer,
+                                GAsyncResult *res,
+                                HandleDeleteBearerContext *ctx)
+{
+    GError *error = NULL;
+
+    if (!mm_base_bearer_disconnect_finish (bearer, res, &error)) {
+        g_dbus_method_invocation_take_error (ctx->invocation, error);
+        handle_delete_bearer_context_free (ctx);
+        return;
+    }
+
+    if (!mm_bearer_list_delete_bearer (ctx->list, ctx->bearer_path, &error))
+        g_dbus_method_invocation_take_error (ctx->invocation, error);
+    else
+        mm_gdbus_modem_complete_delete_bearer (ctx->skeleton, ctx->invocation);
+    handle_delete_bearer_context_free (ctx);
+}
+
 static void
 handle_delete_bearer_auth_ready (MMBaseModem *self,
                                  GAsyncResult *res,
@@ -787,14 +810,30 @@ handle_delete_bearer_auth_ready (MMBaseModem *self,
         return;
     }
 
-    if (!ctx->list)
+    if (!g_str_has_prefix (ctx->bearer_path, MM_DBUS_BEARER_PREFIX)) {
-        mm_gdbus_modem_complete_delete_bearer (ctx->skeleton, ctx->invocation);
+        g_dbus_method_invocation_return_error (ctx->invocation,
-    else if (!mm_bearer_list_delete_bearer (ctx->list, ctx->bearer_path, &error))
+                                               MM_CORE_ERROR,
-        g_dbus_method_invocation_take_error (ctx->invocation, error);
+                                               MM_CORE_ERROR_INVALID_ARGS,
-    else
+                                               "Cannot delete bearer: invalid path '%s'",
-        mm_gdbus_modem_complete_delete_bearer (ctx->skeleton, ctx->invocation);
+                                               ctx->bearer_path);
+        handle_delete_bearer_context_free (ctx);
+        return;
+    }
 
-    handle_delete_bearer_context_free (ctx);
+    ctx->bearer = mm_bearer_list_find_by_path (ctx->list, ctx->bearer_path);
+    if (!ctx->bearer) {
+        g_dbus_method_invocation_return_error (ctx->invocation,
+                                               MM_CORE_ERROR,
+                                               MM_CORE_ERROR_INVALID_ARGS,
+                                               "Cannot delete bearer: no bearer found with path '%s'",
+                                               ctx->bearer_path);
+        handle_delete_bearer_context_free (ctx);
+        return;
+    }
+
+    mm_base_bearer_disconnect (ctx->bearer,
+                               (GAsyncReadyCallback)delete_bearer_disconnect_ready,
+                               ctx);
 }
 
 static gboolean