From 1ecd17e156364e964e343ee208da850077d70768 Mon Sep 17 00:00:00 2001
From: sakumisu <1203593632@qq.com>
Date: Mon, 20 Jun 2022 20:22:35 +0800
Subject: [PATCH] fix fsdev pma offset max size caculate

---
 port/fsdev/usb_dc_fsdev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/port/fsdev/usb_dc_fsdev.c b/port/fsdev/usb_dc_fsdev.c
index a45db033..ecdc330f 100644
--- a/port/fsdev/usb_dc_fsdev.c
+++ b/port/fsdev/usb_dc_fsdev.c
@@ -153,7 +153,7 @@ int usbd_ep_open(const struct usbd_endpoint_cfg *ep_cfg)
         g_fsdev_udc.out_ep[ep_idx].ep_mps = ep_cfg->ep_mps;
         g_fsdev_udc.out_ep[ep_idx].ep_type = ep_cfg->ep_type;
         if (g_fsdev_udc.out_ep[ep_idx].ep_mps > g_fsdev_udc.out_ep[ep_idx].ep_pma_buf_len) {
-            if (g_fsdev_udc.pma_offset + g_fsdev_udc.out_ep[ep_idx].ep_mps >= USB_RAM_SIZE) {
+            if (g_fsdev_udc.pma_offset + g_fsdev_udc.out_ep[ep_idx].ep_mps > USB_RAM_SIZE) {
                 return -1;
             }
             g_fsdev_udc.out_ep[ep_idx].ep_pma_buf_len = ep_cfg->ep_mps;
@@ -172,7 +172,7 @@ int usbd_ep_open(const struct usbd_endpoint_cfg *ep_cfg)
         g_fsdev_udc.in_ep[ep_idx].ep_mps = ep_cfg->ep_mps;
         g_fsdev_udc.in_ep[ep_idx].ep_type = ep_cfg->ep_type;
         if (g_fsdev_udc.in_ep[ep_idx].ep_mps > g_fsdev_udc.in_ep[ep_idx].ep_pma_buf_len) {
-            if (g_fsdev_udc.pma_offset + g_fsdev_udc.in_ep[ep_idx].ep_mps >= USB_RAM_SIZE) {
+            if (g_fsdev_udc.pma_offset + g_fsdev_udc.in_ep[ep_idx].ep_mps > USB_RAM_SIZE) {
                 return -1;
             }
             g_fsdev_udc.in_ep[ep_idx].ep_pma_buf_len = ep_cfg->ep_mps;