USB: idmouse: fix NULL-deref at probe

[pandora-kernel.git] / drivers / usb / misc / idmouse.c

diff --git a/drivers/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c
index 515b67f..848322e 100644 (file)
--- a/drivers/usb/misc/idmouse.c
+++ b/drivers/usb/misc/idmouse.c
@@ -346,6 +346,9 @@ static int idmouse_probe(struct usb_interface *interface,
        if (iface_desc->desc.bInterfaceClass != 0x0A)
                return -ENODEV;
 
+       if (iface_desc->desc.bNumEndpoints < 1)
+               return -ENODEV;
+
        /* allocate memory for our device state and initialize it */
        dev = kzalloc(sizeof(*dev), GFP_KERNEL);
        if (dev == NULL)