1 files changed, 1 insertions, 0 deletions
diff --git a/fs/open.c b/fs/open.c
index 89e0c23..3b56192 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -1087,6 +1087,7 @@ EXPORT_SYMBOL(sys_close);
 asmlinkage long sys_vhangup(void)
 {
 	if (capable(CAP_SYS_TTY_CONFIG)) {
+		/* XXX: this needs locking */
 		tty_vhangup(current->signal->tty);
 		return 0;
 	}