X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fsyscall.c;h=c6720481985d89a562ca87e0b1d648981abb7e22;hb=9909005737c7e2b826221f49b7fb00c29a5de94b;hp=b4f2e1eca92f2fb726aa774f8bc94f384bc2f000;hpb=1f47715a589b81c62de8fd49a342bf4cf4be770a;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/syscall.c b/src/bin/lttng-sessiond/syscall.c
index b4f2e1eca..c67204819 100644
--- a/src/bin/lttng-sessiond/syscall.c
+++ b/src/bin/lttng-sessiond/syscall.c
@@ -404,11 +404,15 @@ 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) {
@@ -428,7 +432,10 @@ 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;
 }