[PATCH 2/4] staging: ozwpan: Check error condition before creating endpoint.

[Rupesh Gujare]

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

Signed-off-by: Rupesh Gujare <rupesh.gujare@xxxxxxxxx>
---
 drivers/staging/ozwpan/ozhcd.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/staging/ozwpan/ozhcd.c b/drivers/staging/ozwpan/ozhcd.c
index 4682d78..d5a3900 100644
--- a/drivers/staging/ozwpan/ozhcd.c
+++ b/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;
-- 
1.7.9.5

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