diff --git a/fs/squashfs/backend.c b/fs/squashfs/backend.c
index a6136ca..0ae37ab 100644
--- a/fs/squashfs/backend.c
+++ b/fs/squashfs/backend.c
@@ -24,6 +24,10 @@ int squashfs_find_backend(struct file_system_type *fs_type, int flags,
 
 void squashfs_kill_super(struct super_block *sb)
 {
+	if (sb->s_fs_info) {
+		kfree(sb->s_fs_info);
+		sb->s_fs_info = NULL;
+	}
 #ifdef CONFIG_BLOCK
 	if (sb->s_bdev) {
 		kill_block_super(sb);