Commit a5569a56 authored Jan 21, 2008 by Alan Cox Committed by Linus Torvalds Jan 21, 2008

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.

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@akpm@linux-foundation.org>

parent 1fc3858a

drivers/usb/serial/keyspan.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -447,7 +447,7 @@ static void usa26_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 errors on individual bytes, only possible overrun err*/