diff options
Diffstat (limited to 'drivers/usb/serial/keyspan.c')
-rw-r--r-- | drivers/usb/serial/keyspan.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index feba9679ace8..7c069a02c1dd 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c | |||
@@ -447,7 +447,7 @@ static void usa26_indat_callback(struct urb *urb) | |||
447 | 447 | ||
448 | port = (struct usb_serial_port *) urb->context; | 448 | port = (struct usb_serial_port *) urb->context; |
449 | tty = port->tty; | 449 | tty = port->tty; |
450 | if (urb->actual_length) { | 450 | if (tty && urb->actual_length) { |
451 | /* 0x80 bit is error flag */ | 451 | /* 0x80 bit is error flag */ |
452 | if ((data[0] & 0x80) == 0) { | 452 | if ((data[0] & 0x80) == 0) { |
453 | /* no errors on individual bytes, only possible overrun err*/ | 453 | /* no errors on individual bytes, only possible overrun err*/ |