Fix: add unknown event to dispatch list

[lttng-modules.git] / src / lttng-syscalls.c

diff --git a/src/lttng-syscalls.c b/src/lttng-syscalls.c
index b9ae5e3ad104090fc11047177147c6a25a10b9ea..2a9125a257595eed4dfab2a27388cc52d5724300 100644 (file)
--- a/src/lttng-syscalls.c
+++ b/src/lttng-syscalls.c
@@ -577,7 +577,8 @@ void lttng_syscall_event_enabler_create_event(struct lttng_event_enabler_common
                        printk(KERN_INFO "Unable to create event recorder %s\n", desc->event_name);
                        return;
                }
-               hlist_add_head(&event->priv->u.syscall.node, &dispatch_table[syscall_nr]);
+               if (dispatch_table)
+                       hlist_add_head_rcu(&event->priv->u.syscall.node, &dispatch_table[syscall_nr]);
                break;
        }
        case LTTNG_EVENT_ENABLER_TYPE_NOTIFIER:
@@ -626,6 +627,8 @@ void lttng_syscall_event_enabler_create_event(struct lttng_event_enabler_common
                        return;
                }
                event->priv->u.syscall.syscall_id = syscall_nr;
+               if (dispatch_table)
+                       hlist_add_head_rcu(&event->priv->u.syscall.node, dispatch_table);
                break;
        }
        default: