dfs: check for null reference

9a755833 · Grissiom · 4c39f876 · 9a755833
隐藏空白更改
内联并排

Showing with 3 addition and 0 deletion

components/dfs/src/dfs_file.c components/dfs/src/dfs_file.c +3 -0

未找到文件。
--- a/components/dfs/src/dfs_file.c
+++ b/components/dfs/src/dfs_file.c
@@ -335,6 +335,9 @@ int dfs_file_lseek(struct dfs_fd *fd, rt_off_t offset)

    if (fd == RT_NULL)
        return -DFS_STATUS_EINVAL;
+    fs = fd->fs;
+    if (fs == RT_NULL)
+        return -DFS_STATUS_EINVAL;
    if (fs->ops->lseek == RT_NULL)
        return -DFS_STATUS_ENOSYS;