staging: ozwpan: Check for correct config number.

Check for valid config number before completing set interface.

Signed-off-by: Rupesh Gujare <rupesh.gujare@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/ozwpan/ozhcd.c b/drivers/staging/ozwpan/ozhcd.c
index ab93b74..83ed64c 100644 (file)
--- a/drivers/staging/ozwpan/ozhcd.c
+++ b/drivers/staging/ozwpan/ozhcd.c
@@ -909,7 +909,7 @@ static void oz_hcd_complete_set_interface(struct oz_port *port, struct urb *urb,
        struct usb_hcd *hcd = port->ozhcd->hcd;
        int rc = 0;
 
-       if (rcode == 0) {
+       if ((rcode == 0) && (port->config_num > 0)) {
                struct usb_host_config *config;
                struct usb_host_interface *intf;
                oz_dbg(ON, "Set interface %d alt %d\n", if_num, alt);