[PATCH 1/2] [USB] [PL2303]: fixed to skip NULL entry in pl2303_shutdown.

[Noriaki TAKAMIYA <takamiya@linux-ipv6.org>]

Hi,

  While booting, this entry is set to NULL in destroy_serial(),
  but serial->port is referred again in pl2303_shutdown() via
  serial->type->shutdown.
---
 drivers/usb/serial/pl2303.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 83dfae9..d631f8c 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -905,6 +905,8 @@ static void pl2303_shutdown(struct usb_s
 	dbg("%s", __FUNCTION__);
 
 	for (i = 0; i < serial->num_ports; ++i) {
+		if (!serial->port[i])
+			continue;
 		priv = usb_get_serial_port_data(serial->port[i]);
 		if (priv) {
 			pl2303_buf_free(priv->buf);
-- 
1.4.4

--
Noriaki TAKAMIYA