From c359e93a9cc46e0c41328a85b760b45e031133ac Mon Sep 17 00:00:00 2001
From: xiao-mang <53597406+xiao-mang@users.noreply.github.com>
Date: Sun, 28 Apr 2024 15:21:02 +0800
Subject: [PATCH] fix file mmap (#8865)

---
 components/dfs/dfs_v2/src/dfs_file_mmap.c | 2 +-
 components/dfs/dfs_v2/src/dfs_pcache.c    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/components/dfs/dfs_v2/src/dfs_file_mmap.c b/components/dfs/dfs_v2/src/dfs_file_mmap.c
index 430839112a..b976a85a27 100644
--- a/components/dfs/dfs_v2/src/dfs_file_mmap.c
+++ b/components/dfs/dfs_v2/src/dfs_file_mmap.c
@@ -184,7 +184,7 @@ void page_read(struct rt_varea *varea, struct rt_aspace_io_msg *msg)
                varea->start, varea->size, varea->offset, varea->attr, varea->flag);
 
         ret = dfs_aspace_mmap_read(file, varea, msg);
-        if (ret > 0)
+        if (ret >= 0)
         {
             msg->response.status = MM_FAULT_STATUS_OK;
             if (ret < ARCH_PAGE_SIZE)
diff --git a/components/dfs/dfs_v2/src/dfs_pcache.c b/components/dfs/dfs_v2/src/dfs_pcache.c
index 57f4510e93..350ad1f061 100644
--- a/components/dfs/dfs_v2/src/dfs_pcache.c
+++ b/components/dfs/dfs_v2/src/dfs_pcache.c
@@ -1105,7 +1105,7 @@ int dfs_aspace_read(struct dfs_file *file, void *buf, size_t count, off_t *pos)
                 }
 
                 len = count > len ? len : count;
-                if (len)
+                if (len > 0)
                 {
                     rt_memcpy(ptr, page->page + *pos - page->fpos, len);
                     ptr += len;