USB: serial: do not forward USB specific errors in write

[firefly-linux-kernel-4.4.55.git] / drivers / usb / serial / usb-serial.c

diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 5c4fcf8d5f98db0efcf29870120e2779279189fa..8c46813b9afa276871c001f4ee236a1445c6032a 100644 (file)
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -364,6 +364,8 @@ static int serial_write(struct tty_struct *tty, const unsigned char *buf,
 
        /* pass on to the driver specific version of this function */
        retval = port->serial->type->write(tty, port, buf, count);
+       if (retval < 0)
+               retval = usb_translate_errors(retval);
 exit:
        return retval;
 }