fs:add _POSIX_OPEN_MAX limit to files_extend

Signed-off-by: 田昕 <tianxin7@xiaomi.com>
2021-09-02 14:46:31 +08:00 · 2021-09-02 14:46:31 +08:00 · b53bbb15c5
parent 0460367a70
commit b53bbb15c5
1 changed files with 5 additions and 0 deletions
--- a/fs/inode/fs_files.c
+++ b/fs/inode/fs_files.c
@ -71,6 +71,11 @@ static int files_extend(FAR struct filelist *list, size_t row)
      return 0;
    }

+  if (row * CONFIG_NFILE_DESCRIPTORS_PER_BLOCK > _POSIX_OPEN_MAX)
+    {
+      return -EMFILE;
+    }
+
  tmp = kmm_realloc(list->fl_files, sizeof(FAR struct file *) * row);
  DEBUGASSERT(tmp);
  if (tmp == NULL)