diff options
Diffstat (limited to 'include/linux/tty.h')
| -rw-r--r-- | include/linux/tty.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/tty.h b/include/linux/tty.h index b90b5c221ff0..1c3316a47d7e 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -518,9 +518,9 @@ extern void tty_port_put(struct tty_port *port); static inline struct tty_port *tty_port_get(struct tty_port *port) { - if (port) - kref_get(&port->kref); - return port; + if (port && kref_get_unless_zero(&port->kref)) + return port; + return NULL; } /* If the cts flow control is enabled, return true. */ |