[PATCH 4.19 053/148] crypto: virtio - Wait for tasklet to complete on device remove

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4.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: wangyangxin <wangyangxin1@xxxxxxxxxx>

[ Upstream commit 67cc511e8d436456cc98033e6d4ba83ebfc8e672 ]

The scheduled tasklet needs to be executed on device remove.

Fixes: fed93fb62e05 ("crypto: virtio - Handle dataq logic with tasklet")
Signed-off-by: wangyangxin <wangyangxin1@xxxxxxxxxx>
Signed-off-by: Gonglei <arei.gonglei@xxxxxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/crypto/virtio/virtio_crypto_core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/crypto/virtio/virtio_crypto_core.c b/drivers/crypto/virtio/virtio_crypto_core.c
index c21770345f5f..2515a141c67b 100644
--- a/drivers/crypto/virtio/virtio_crypto_core.c
+++ b/drivers/crypto/virtio/virtio_crypto_core.c
@@ -446,11 +446,14 @@ static void virtcrypto_free_unused_reqs(struct virtio_crypto *vcrypto)
 static void virtcrypto_remove(struct virtio_device *vdev)
 {
 	struct virtio_crypto *vcrypto = vdev->priv;
+	int i;
 
 	dev_info(&vdev->dev, "Start virtcrypto_remove.\n");
 
 	if (virtcrypto_dev_started(vcrypto))
 		virtcrypto_dev_stop(vcrypto);
+	for (i = 0; i < vcrypto->max_data_queues; i++)
+		tasklet_kill(&vcrypto->data_vq[i].done_task);
 	vdev->config->reset(vdev);
 	virtcrypto_free_unused_reqs(vcrypto);
 	virtcrypto_clear_crypto_engines(vcrypto);
-- 
2.43.0







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