X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fsyscall.c;h=bfe32ac731f1be0e72441b2e152561079764fc38;hb=73664f816b1512231bf44679eea5a3c91ca619ec;hp=eb81d67429a2d96ac6b062db40940988ad0dd58c;hpb=6c1c0768320135c6936c371b09731851b508c023;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/syscall.c b/src/bin/lttng-sessiond/syscall.c
index eb81d6742..bfe32ac73 100644
--- a/src/bin/lttng-sessiond/syscall.c
+++ b/src/bin/lttng-sessiond/syscall.c
@@ -405,11 +405,15 @@ ssize_t syscall_list_channel(struct ltt_kernel_channel *kchan,
 			events = new_events;
 		}
 
+		rcu_read_lock();
 		ksyscall = lookup_syscall(syscalls_ht, syscall_table[i].name);
 		if (ksyscall) {
 			update_event_syscall_bitness(events, i, ksyscall->index);
+			rcu_read_unlock();
 			continue;
 		}
+		ksyscall = NULL;
+		rcu_read_unlock();
 
 		ret = add_syscall_to_ht(syscalls_ht, i, count);
 		if (ret < 0) {
@@ -429,7 +433,10 @@ ssize_t syscall_list_channel(struct ltt_kernel_channel *kchan,
 	return count;
 
 error:
+	rcu_read_lock();
 	destroy_syscall_ht(syscalls_ht);
+	rcu_read_unlock();
+
 	free(events);
 	return ret;
 }