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Commit d866150a authored by Huzaifa Sidhpurwala's avatar Huzaifa Sidhpurwala Committed by Greg Kroah-Hartman
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USB: serial: keyspan: Fix possible null pointer dereference. 



Signed-off-by: default avatarHuzaifa Sidhpurwala <huzaifas@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 108be95f

drivers/usb/serial/keyspan.c

+5 −5
Original line number Diff line number Diff line
@@ -2121,16 +2121,16 @@ static int keyspan_usa49_send_setup(struct usb_serial *serial, 
	/* Work out which port within the device is being setup */

	device_port = port->number - port->serial->minor;



	dbg("%s - endpoint %d port %d (%d)",

			__func__, usb_pipeendpoint(this_urb->pipe),

			port->number, device_port);



	/* Make sure we have an urb then send the message */

	if (this_urb == NULL) {

		dbg("%s - oops no urb for port %d.", __func__, port->number);

		return -1;

	}



	dbg("%s - endpoint %d port %d (%d)",

			__func__, usb_pipeendpoint(this_urb->pipe),

			port->number, device_port);



	/* Save reset port val for resend.

	   Don't overwrite resend for open/close condition. */

	if ((reset_port + 1) > p_priv->resend_cont)