Fix module get/put handling wrt data free (use after free)

[lttng-modules.git] / probes / lttng-ftrace.c

diff --git a/probes/lttng-ftrace.c b/probes/lttng-ftrace.c
index c866876e6f07dcf5b4d7612d27d4d9e6de08f223..ec086902892d644fcee8c57f70d78231cc4944f2 100644 (file)
--- a/probes/lttng-ftrace.c
+++ b/probes/lttng-ftrace.c
@@ -146,12 +146,17 @@ void lttng_ftrace_unregister(struct ltt_event *event)
 {
        wrapper_unregister_ftrace_function_probe(event->u.ftrace.symbol_name,
                        &lttng_ftrace_ops, event);
+}
+EXPORT_SYMBOL_GPL(lttng_ftrace_unregister);
+
+void lttng_ftrace_destroy_private(struct ltt_event *event)
+{
        kfree(event->u.ftrace.symbol_name);
        kfree(event->desc->fields);
        kfree(event->desc->name);
        kfree(event->desc);
 }
-EXPORT_SYMBOL_GPL(lttng_ftrace_unregister);
+EXPORT_SYMBOL_GPL(lttng_ftrace_destroy_private);
 
 int lttng_ftrace_init(void)
 {