[PATCH] vp_vdpa: synchronize irq when free irq

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This commits synchronizes irqs when free them

Signed-off-by: Zhu Lingshan <lingshan.zhu@xxxxxxxxx>
Tested-by: Cindy Lu <lulu@xxxxxxxxxx>
---
 drivers/vdpa/virtio_pci/vp_vdpa.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/vdpa/virtio_pci/vp_vdpa.c b/drivers/vdpa/virtio_pci/vp_vdpa.c
index 281287fae89f..d8ee3e68cd2d 100644
--- a/drivers/vdpa/virtio_pci/vp_vdpa.c
+++ b/drivers/vdpa/virtio_pci/vp_vdpa.c
@@ -116,6 +116,7 @@ static void vp_vdpa_free_irq(struct vp_vdpa *vp_vdpa)
 	for (i = 0; i < vp_vdpa->queues; i++) {
 		if (vp_vdpa->vring[i].irq != VIRTIO_MSI_NO_VECTOR) {
 			vp_modern_queue_vector(mdev, i, VIRTIO_MSI_NO_VECTOR);
+			synchronize_irq(vp_vdpa->vring[i].irq);
 			devm_free_irq(&pdev->dev, vp_vdpa->vring[i].irq,
 				      &vp_vdpa->vring[i]);
 			vp_vdpa->vring[i].irq = VIRTIO_MSI_NO_VECTOR;
@@ -124,6 +125,7 @@ static void vp_vdpa_free_irq(struct vp_vdpa *vp_vdpa)
 
 	if (vp_vdpa->config_irq != VIRTIO_MSI_NO_VECTOR) {
 		vp_modern_config_vector(mdev, VIRTIO_MSI_NO_VECTOR);
+		synchronize_irq(vp_vdpa->config_irq);
 		devm_free_irq(&pdev->dev, vp_vdpa->config_irq, vp_vdpa);
 		vp_vdpa->config_irq = VIRTIO_MSI_NO_VECTOR;
 	}
-- 
2.39.3

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