fix: A核codex修改

【背景】A核codex扫描告警消除。

【修改方案】
1. 将不可屏蔽告警进行修复。

【影响】
对现有的产品编译不会有影响。

re #I40B1S
Signed-off-by: Nwangchen <253227059@qq.com>

fs/jffs2/src/vfs_jffs2.c

@@ -717,14 +717,17 @@ ssize_t VfsJffs2Readlink(struct Vnode *vnode, char *buffer, size_t bufLen)
 int VfsJffs2Unlink(struct Vnode *parentVnode, struct Vnode *targetVnode, const char *path)
 {
     int ret;
-    struct jffs2_inode *parentInode = (struct jffs2_inode *)parentVnode->data;
-    struct jffs2_inode *targetInode = (struct jffs2_inode *)targetVnode->data;
+    struct jffs2_inode *parentInode = NULL;
+    struct jffs2_inode *targetInode = NULL;
 
     if (!parentVnode || !targetVnode) {
         PRINTK("%s-%d parentVnode=%x, targetVnode=%x\n", __FUNCTION__, __LINE__, parentVnode, targetVnode);
         return -EINVAL;
     }
 
+    parentInode = (struct jffs2_inode *)parentVnode->data;
+    targetInode = (struct jffs2_inode *)targetVnode->data;
+
     LOS_MuxLock(&g_jffs2FsLock, (uint32_t)JFFS2_WAITING_FOREVER);
 
     ret = jffs2_unlink(parentInode, targetInode, (const unsigned char *)path);