diff --git a/[refs] b/[refs]
index d905e04f1f78..1e610c9c27ad 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f8cc5756dee3c2a4c56a7f089291f5ae0232747f
+refs/heads/master: 7a3ca7d2b5ec31b2cfa594b961d77e68075e33c7
diff --git a/trunk/drivers/usb/serial/generic.c b/trunk/drivers/usb/serial/generic.c
index ddde5fb13f6b..5f7d3193d355 100644
--- a/trunk/drivers/usb/serial/generic.c
+++ b/trunk/drivers/usb/serial/generic.c
@@ -223,7 +223,7 @@ int usb_serial_generic_write_room (struct usb_serial_port *port)
 	dbg("%s - port %d", __FUNCTION__, port->number);
 
 	if (serial->num_bulk_out) {
-		if (port->write_urb_busy)
+		if (!(port->write_urb_busy))
 			room = port->bulk_out_size;
 	}