fix_return

components/dfs/dfs_v2/src/dfs.c

@@ -673,7 +673,7 @@ int sys_dup(int oldfd)
 #ifdef RT_USING_SMART
     return (sysret_t)newfd;
 #else
-    return newfd;
+return newfd;
 #endif
 }
 

components/dfs/dfs_v2/src/dfs_posix.c

@@ -399,7 +399,7 @@ off_t lseek(int fd, off_t offset, int whence)
     result = dfs_file_lseek(file, offset, whence);
     if (result < 0)
     {
-        rt_set_errno(result);
+        rt_set_errno(-EPERM);
 
         return -1;
     }