Merge branch 'acpi-bus'

[cascardo/linux.git] / drivers / usb / gadget / function / u_serial.c

diff --git a/drivers/usb/gadget/function/u_serial.c b/drivers/usb/gadget/function/u_serial.c
index 6ded634..e0cd1e4 100644 (file)
--- a/drivers/usb/gadget/function/u_serial.c
+++ b/drivers/usb/gadget/function/u_serial.c
@@ -375,10 +375,15 @@ __acquires(&port->port_lock)
 */
 {
        struct list_head        *pool = &port->write_pool;
-       struct usb_ep           *in = port->port_usb->in;
+       struct usb_ep           *in;
        int                     status = 0;
        bool                    do_tty_wake = false;
 
+       if (!port->port_usb)
+               return status;
+
+       in = port->port_usb->in;
+
        while (!port->write_busy && !list_empty(pool)) {
                struct usb_request      *req;
                int                     len;