1 files changed, 5 insertions, 1 deletions
diff --git a/fs/aio.c b/fs/aio.c
index 562916d85cba..b0b17bd098bb 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -361,6 +361,9 @@ static int aio_ring_mremap(struct vm_area_struct *vma)
 	spin_lock(&mm->ioctx_lock);
 	rcu_read_lock();
 	table = rcu_dereference(mm->ioctx_table);
+	if (!table)
+		goto out_unlock;
+
 	for (i = 0; i < table->nr; i++) {
 		struct kioctx *ctx;
 
@@ -374,6 +377,7 @@ static int aio_ring_mremap(struct vm_area_struct *vma)
 		}
 	}
 
+out_unlock:
 	rcu_read_unlock();
 	spin_unlock(&mm->ioctx_lock);
 	return res;
@@ -390,7 +394,7 @@ static const struct vm_operations_struct aio_ring_vm_ops = {
 
 static int aio_ring_mmap(struct file *file, struct vm_area_struct *vma)
 {
-	vma->vm_flags |= VM_DONTEXPAND;
+	vm_flags_set(vma, VM_DONTEXPAND);
 	vma->vm_ops = &aio_ring_vm_ops;
 	return 0;
 }