Commit 3004e537 authored Jan 03, 2008 by Alan Cox Committed by Greg Kroah-Hartman Feb 01, 2008

USB: keyspan: Fix oops



If we get a data URB back from the hardware after we have put the tty to
bed we go kaboom. Fortunately all we need to do is process the URB
without trying to ram its contents down the throat of an ex-tty.

Cc: stable <stable@kernel.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

parent 24e1c13c

drivers/usb/serial/keyspan.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -838,7 +838,7 @@ static void usa49_indat_callback(struct urb *urb)

		port = (struct usb_serial_port *) urb->context;
		tty = port->tty;
		if (urb->actual_length) {
		if (tty && urb->actual_length) {
		/* 0x80 bit is error flag */
		if ((data[0] & 0x80) == 0) {
		/* no error on any byte */