[lttng-dev] [PATCH lttng-tools] Fix: add missing RCU read unlock

[Mathieu Desnoyers]

Master commit 24eb8569dc841f318d7964ca9a0ad0a4f9508a8e
"Fix: Missing RCU read locks in syscall_list_channel()"

Introduces unbalanced RCU read-side lock/unlock. Should be applied to
master and stable-2.6.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
---
 src/bin/lttng-sessiond/syscall.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/bin/lttng-sessiond/syscall.c b/src/bin/lttng-sessiond/syscall.c
index c38f891..bfe32ac 100644
--- a/src/bin/lttng-sessiond/syscall.c
+++ b/src/bin/lttng-sessiond/syscall.c
@@ -409,6 +409,7 @@ ssize_t syscall_list_channel(struct ltt_kernel_channel *kchan,
 		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;
-- 
2.1.1