Since commit 0a8fd1346254 ("USB: fix problems with duplicate endpoint addresses") USB core guarantees that there are no more than 15 endpoint descriptors per type (and altsetting) so the corresponding overflow checks can now be replaced with a compile-time check on the array sizes (and indirectly the maximum number of ports). Signed-off-by: Johan Hovold <johan@xxxxxxxxxx> --- drivers/usb/serial/usb-serial.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 68af80540000..3d8a6c7d34c1 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -729,29 +729,26 @@ static void find_endpoints(struct usb_serial *serial, struct usb_endpoint_descriptor *epd; unsigned int i; + BUILD_BUG_ON(ARRAY_SIZE(epds->bulk_in) < USB_MAXENDPOINTS / 2); + BUILD_BUG_ON(ARRAY_SIZE(epds->bulk_out) < USB_MAXENDPOINTS / 2); + BUILD_BUG_ON(ARRAY_SIZE(epds->interrupt_in) < USB_MAXENDPOINTS / 2); + BUILD_BUG_ON(ARRAY_SIZE(epds->interrupt_out) < USB_MAXENDPOINTS / 2); + iface_desc = serial->interface->cur_altsetting; for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { epd = &iface_desc->endpoint[i].desc; if (usb_endpoint_is_bulk_in(epd)) { dev_dbg(dev, "found bulk in on endpoint %u\n", i); - if (epds->num_bulk_in == MAX_NUM_PORTS) - continue; epds->bulk_in[epds->num_bulk_in++] = epd; } else if (usb_endpoint_is_bulk_out(epd)) { dev_dbg(dev, "found bulk out on endpoint %u\n", i); - if (epds->num_bulk_out == MAX_NUM_PORTS) - continue; epds->bulk_out[epds->num_bulk_out++] = epd; } else if (usb_endpoint_is_int_in(epd)) { dev_dbg(dev, "found interrupt in on endpoint %u\n", i); - if (epds->num_interrupt_in == MAX_NUM_PORTS) - continue; epds->interrupt_in[epds->num_interrupt_in++] = epd; } else if (usb_endpoint_is_int_out(epd)) { dev_dbg(dev, "found interrupt out on endpoint %u\n", i); - if (epds->num_interrupt_out == MAX_NUM_PORTS) - continue; epds->interrupt_out[epds->num_interrupt_out++] = epd; } } -- 2.12.0 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html