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usb: usb_dc_kinetis: Fix access wrong memory

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Add appropriate check.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
This commit is contained in:
Andrei Emeltchenko 2019-03-22 17:17:45 +02:00 • committed by Anas Nashif
commit 40774007c3
1 changed files with 5 additions and 0 deletions
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5
drivers/usb/device/usb_dc_kinetis.c
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@ -799,6 +799,11 @@ int usb_dc_ep_mps(const u8_t ep)
{
u8_t ep_idx = EP_ADDR2IDX(ep);
if (ep_idx > (NUM_OF_EP_MAX - 1)) {
LOG_ERR("Wrong endpoint index/address");
return -EINVAL;
}
if (ep & USB_EP_DIR_IN) {
return dev_data.ep_ctrl[ep_idx].mps_in;
} else {