diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index fcf1b1b400823de809da09827ddc4c42a645b5eb..f5c1c150d9f3be7bcf2feb2edc0601dabc5ad3c3 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -2319,8 +2319,8 @@ static long btrfs_ioctl_rm_dev(struct file *file, void __user *arg)
 	kfree(vol_args);
 out:
 	mutex_unlock(&root->fs_info->volume_mutex);
-	mnt_drop_write_file(file);
 	atomic_set(&root->fs_info->mutually_exclusive_operation_running, 0);
+	mnt_drop_write_file(file);
 	return ret;
 }