USB: fix memleak in ark3116 serial driver

in an error case memory already allocated must be freed again.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index ddfee918000d..fe2bfd67ba8e 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -151,8 +151,10 @@ static int ark3116_attach(struct usb_serial *serial)
         return 0;
 
 cleanup:
-        for (--i; i >= 0; --i)
+        for (--i; i >= 0; --i) {
+                kfree(usb_get_serial_port_data(serial->port[i]));
                 usb_set_serial_port_data(serial->port[i], NULL);
+        }
         return -ENOMEM;
 }