Changeset 96258fc in mainline

Timestamp:

2017-11-25T19:20:56Z (7 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

9940ce0

Parents:

ce4a21a0

Message:

Free up all call capabilities when task exits

File:

• kernel/generic/src/ipc/ipc.c (modified) (2 diffs)

kernel/generic/src/ipc/ipc.c

@@ -838 +838 @@
 }
 
+static bool call_cap_cleanup_cb(cap_t *cap, void *arg)
+{
+        /*
+         * Here we just free the capability and release the kobject.
+         * The kernel answers the remaining calls elsewhere in ipc_cleanup().
+         */
+        kobject_t *kobj = cap_unpublish(cap->task, cap->handle,
+            KOBJECT_TYPE_CALL);
+        kobject_put(kobj);
+        cap_free(cap->task, cap->handle);
+        return true;
+}
+
 /** Clean up all IPC communication of the current task.
  *
@@ -874 +887 @@
         ipc_kbox_cleanup();
 #endif
+
+        /* Destroy all call capabilities */
+        caps_apply_to_kobject_type(TASK, KOBJECT_TYPE_CALL, call_cap_cleanup_cb,
+            NULL);
         
         /* Answer all messages in 'calls' and 'dispatched_calls' queues */