TTY: serial: move the dereference below the NULL test
The dereference should be moved below the NULL test.
spatch with a semantic match is used to found this.
(http://coccinelle.lip6.fr/)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/ioc3_serial.c b/drivers/tty/serial/ioc3_serial.c
index 758ff310..5ac5289 100644
--- a/drivers/tty/serial/ioc3_serial.c
+++ b/drivers/tty/serial/ioc3_serial.c
@@ -1120,13 +1120,14 @@
struct ioc3_port *port = get_ioc3_port(the_port);
struct ring *inring;
struct ring_entry *entry;
- struct port_hooks *hooks = port->ip_hooks;
+ struct port_hooks *hooks;
int byte_num;
char *sc;
int loop_counter;
BUG_ON(!(len >= 0));
BUG_ON(!port);
+ hooks = port->ip_hooks;
/* There is a nasty timing issue in the IOC3. When the rx_timer
* expires or the rx_high condition arises, we take an interrupt.