vDPA/ifcvf: decouple config IRQ releaser from the adapter

This commit decouples config IRQ releaser from the adapter,
so that it could be invoked once probe or in err handlers.
ifcvf_free_irq() works on ifcvf_hw in this commit
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Cc: stable@vger.kernel.org
Message-Id: <20221125145724.1129962-6-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

drivers/vdpa/ifcvf/ifcvf_main.c

@@ -101,10 +101,9 @@ static void ifcvf_free_vq_irq(struct ifcvf_hw *vf)
 		ifcvf_free_vqs_reused_irq(vf);
 }
 
-static void ifcvf_free_config_irq(struct ifcvf_adapter *adapter)
+static void ifcvf_free_config_irq(struct ifcvf_hw *vf)
 {
-	struct pci_dev *pdev = adapter->pdev;
-	struct ifcvf_hw *vf = &adapter->vf;
+	struct pci_dev *pdev = vf->pdev;
 
 	if (vf->config_irq == -EINVAL)
 		return;
@@ -119,13 +118,12 @@ static void ifcvf_free_config_irq(struct ifcvf_adapter *adapter)
 	}
 }
 
-static void ifcvf_free_irq(struct ifcvf_adapter *adapter)
+static void ifcvf_free_irq(struct ifcvf_hw *vf)
 {
-	struct pci_dev *pdev = adapter->pdev;
-	struct ifcvf_hw *vf = &adapter->vf;
+	struct pci_dev *pdev = vf->pdev;
 
 	ifcvf_free_vq_irq(vf);
-	ifcvf_free_config_irq(adapter);
+	ifcvf_free_config_irq(vf);
 	ifcvf_free_irq_vectors(pdev);
 }
 
@@ -187,7 +185,7 @@ static int ifcvf_request_per_vq_irq(struct ifcvf_adapter *adapter)
 
 	return 0;
 err:
-	ifcvf_free_irq(adapter);
+	ifcvf_free_irq(vf);
 
 	return -EFAULT;
 }
@@ -221,7 +219,7 @@ static int ifcvf_request_vqs_reused_irq(struct ifcvf_adapter *adapter)
 
 	return 0;
 err:
-	ifcvf_free_irq(adapter);
+	ifcvf_free_irq(vf);
 
 	return -EFAULT;
 }
@@ -262,7 +260,7 @@ static int ifcvf_request_dev_irq(struct ifcvf_adapter *adapter)
 
 	return 0;
 err:
-	ifcvf_free_irq(adapter);
+	ifcvf_free_irq(vf);
 
 	return -EFAULT;
 
@@ -317,7 +315,7 @@ static int ifcvf_request_config_irq(struct ifcvf_adapter *adapter)
 
 	return 0;
 err:
-	ifcvf_free_irq(adapter);
+	ifcvf_free_irq(vf);
 
 	return -EFAULT;
 }
@@ -508,7 +506,7 @@ static int ifcvf_vdpa_reset(struct vdpa_device *vdpa_dev)
 
 	if (status_old & VIRTIO_CONFIG_S_DRIVER_OK) {
 		ifcvf_stop_datapath(adapter);
-		ifcvf_free_irq(adapter);
+		ifcvf_free_irq(vf);
 	}
 
 	ifcvf_reset_vring(adapter);