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Commit bc9aece0 authored by Rupesh Gujare's avatar Rupesh Gujare Committed by Greg Kroah-Hartman
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staging: ozwpan: Fixes crash due to invalid port aceess. 



This patch fixes kernel crash issue, when we receive URB request
after de-enumerating device.

Signed-off-by: default avatarRupesh Gujare <rupesh.gujare@atmel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent b2271b5b

drivers/staging/ozwpan/ozhcd.c

+7 −2
Original line number Diff line number Diff line
@@ -480,10 +480,14 @@ static int oz_enqueue_ep_urb(struct oz_port *port, u8 ep_addr, int in_dir, 
		oz_free_urb_link(urbl);

		return 0;

	}

	if (in_dir)

	if (in_dir && port->in_ep[ep_addr])

		ep = port->in_ep[ep_addr];

	else

	else if (!in_dir && port->out_ep[ep_addr])

		ep = port->out_ep[ep_addr];

	else {

		err = -ENOMEM;

		goto out;

	}



	/*For interrupt endpoint check for buffered data

	* & complete urb
@@ -505,6 +509,7 @@ static int oz_enqueue_ep_urb(struct oz_port *port, u8 ep_addr, int in_dir, 
	} else {

		err = -EPIPE;

	}

out:

	spin_unlock_bh(&port->ozhcd->hcd_lock);

	if (err)

		oz_free_urb_link(urbl);