[PATCH 19/23] um: virt-pci: Use irq_domain_instantiate()

[Herve Codina <herve.codina@xxxxxxxxxxx>]

um_pci_init() uses __irq_domain_add(). With the introduction of
irq_domain_instantiate(), __irq_domain_add() becomes obsolete.

In order to fully remove __irq_domain_add(), use directly
irq_domain_instantiate().

Signed-off-by: Herve Codina <herve.codina@xxxxxxxxxxx>
---
 arch/um/drivers/virt-pci.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/arch/um/drivers/virt-pci.c b/arch/um/drivers/virt-pci.c
index 7cb503469bbd..597d89338693 100644
--- a/arch/um/drivers/virt-pci.c
+++ b/arch/um/drivers/virt-pci.c
@@ -986,6 +986,11 @@ static struct resource virt_platform_resource = {
 
 static int __init um_pci_init(void)
 {
+	struct irq_domain_info inner_domain_info = {
+		.size = MAX_MSI_VECTORS,
+		.hwirq_max = MAX_MSI_VECTORS,
+		.ops = &um_pci_inner_domain_ops,
+	};
 	int err, i;
 
 	WARN_ON(logic_iomem_add_region(&virt_cfgspace_resource,
@@ -1015,11 +1020,10 @@ static int __init um_pci_init(void)
 		goto free;
 	}
 
-	um_pci_inner_domain = __irq_domain_add(um_pci_fwnode, MAX_MSI_VECTORS,
-					       MAX_MSI_VECTORS, 0,
-					       &um_pci_inner_domain_ops, NULL);
-	if (!um_pci_inner_domain) {
-		err = -ENOMEM;
+	inner_domain_info.fwnode = um_pci_fwnode;
+	um_pci_inner_domain = irq_domain_instantiate(&inner_domain_info);
+	if (IS_ERR(um_pci_inner_domain)) {
+		err = PTR_ERR(um_pci_inner_domain);
 		goto free;
 	}
 
@@ -1056,7 +1060,7 @@ static int __init um_pci_init(void)
 		goto free;
 	return 0;
 free:
-	if (um_pci_inner_domain)
+	if (!IS_ERR_OR_NULL(um_pci_inner_domain))
 		irq_domain_remove(um_pci_inner_domain);
 	if (um_pci_fwnode)
 		irq_domain_free_fwnode(um_pci_fwnode);
-- 
2.45.0