X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fevent.c;h=243937908f11ffdc0bd50b79da7ec5ab1b6a8c1c;hb=e6112cc674b7a50daaefd34b5d4fc2f72404a0ec;hp=099cbd18db8ea42d767951f094df5dfd81856fbe;hpb=6e911cad03751b6814fddd65b19a592acdc2b7b7;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/event.c b/src/bin/lttng-sessiond/event.c
index 099cbd18d..243937908 100644
--- a/src/bin/lttng-sessiond/event.c
+++ b/src/bin/lttng-sessiond/event.c
@@ -180,6 +180,7 @@ int event_kernel_disable_all(struct ltt_kernel_channel *kchan)
 
 /*
  * Enable kernel tracepoint event for a channel from the kernel session.
+ * We own filter_expression and filter.
  */
 int event_kernel_enable_tracepoint(struct ltt_kernel_channel *kchan,
 		struct lttng_event *event)
@@ -407,6 +408,7 @@ error:
 
 /*
  * Enable UST tracepoint event for a channel from a UST session.
+ * We own filter_expression, filter, and exclusion.
  */
 int event_ust_enable_tracepoint(struct ltt_ust_session *usess,
 		struct ltt_ust_channel *uchan, struct lttng_event *event,
@@ -428,6 +430,10 @@ int event_ust_enable_tracepoint(struct ltt_ust_session *usess,
 	if (uevent == NULL) {
 		uevent = trace_ust_create_event(event, filter_expression,
 			filter, exclusion);
+		/* We have passed ownership */
+		filter_expression = NULL;
+		filter = NULL;
+		exclusion = NULL;
 		if (uevent == NULL) {
 			ret = LTTNG_ERR_UST_ENABLE_FAIL;
 			goto error;
@@ -475,6 +481,9 @@ int event_ust_enable_tracepoint(struct ltt_ust_session *usess,
 
 end:
 	rcu_read_unlock();
+	free(filter_expression);
+	free(filter);
+	free(exclusion);
 	return ret;
 
 error:
@@ -490,6 +499,9 @@ error:
 		trace_ust_destroy_event(uevent);
 	}
 	rcu_read_unlock();
+	free(filter_expression);
+	free(filter);
+	free(exclusion);
 	return ret;
 }
 
@@ -620,7 +632,8 @@ error:
  */
 int event_agent_enable_all(struct ltt_ust_session *usess,
 		struct agent *agt, struct lttng_event *event,
-		struct lttng_filter_bytecode *filter)
+		struct lttng_filter_bytecode *filter,
+		char *filter_expression)
 {
 	int ret;
 	struct agent_event *aevent;
@@ -631,7 +644,7 @@ int event_agent_enable_all(struct ltt_ust_session *usess,
 	DBG("Event agent enabling ALL events for session %" PRIu64, usess->id);
 
 	/* Enable event on agent application through TCP socket. */
-	ret = event_agent_enable(usess, agt, event, filter);
+	ret = event_agent_enable(usess, agt, event, filter, filter_expression);
 	if (ret != LTTNG_OK) {
 		goto error;
 	}
@@ -657,7 +670,8 @@ error:
  */
 int event_agent_enable(struct ltt_ust_session *usess,
 		struct agent *agt, struct lttng_event *event,
-		struct lttng_filter_bytecode *filter)
+		struct lttng_filter_bytecode *filter,
+		char *filter_expression)
 {
 	int ret, created = 0;
 	struct agent_event *aevent;