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staging: ozwpan: Check error condition before creating endpoint.

Check if interface number is correct before creating an end point.

Signed-off-by: Rupesh Gujare <rupesh.gujare@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Rupesh Gujare 12 years ago
parent
commit
d236dc11a1
1 changed files with 2 additions and 0 deletions
  1. 2 0
      drivers/staging/ozwpan/ozhcd.c

+ 2 - 0
drivers/staging/ozwpan/ozhcd.c

@@ -1247,6 +1247,8 @@ static int oz_build_endpoints_for_interface(struct usb_hcd *hcd,
 	int request_heartbeat = 0;
 
 	oz_dbg(ON, "interface[%d] = %p\n", if_ix, intf);
+	if (if_ix >= port->num_iface || port->iface == NULL)
+		return -ENOMEM;
 	for (i = 0; i < intf->desc.bNumEndpoints; i++) {
 		struct usb_host_endpoint *hep = &intf->endpoint[i];
 		u8 ep_addr = hep->desc.bEndpointAddress;