diff --git a/mm/shmem.c b/mm/shmem.c
index 166ebf5d2bce..a80148b43476 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2665,6 +2665,8 @@ static long shmem_fallocate(struct file *file, int mode, loff_t offset,
 		spin_lock(&inode->i_lock);
 		inode->i_private = NULL;
 		wake_up_all(&shmem_falloc_waitq);
+		if (WARN_ON_ONCE(!list_empty(&shmem_falloc_waitq.task_list)))
+			list_del(&shmem_falloc_waitq.task_list);
 		spin_unlock(&inode->i_lock);
 		error = 0;
 		goto out;