irqdomain: Use irq_domain_instantiate() for hierarchy domain creation

irq_domain_instantiate() handles all needs to be used in
irq_domain_create_hierarchy()

Avoid code duplication and use directly irq_domain_instantiate() for
hierarchy domain creation.

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240614173232.1184015-10-herve.codina@bootlin.com

diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 1269a8104e6c356b16bcd58274c9ede9d23884bb..8dc0007cdec16af7e5b044babf219cabfff0c77f 100644 (file)
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -1213,23 +1213,16 @@ struct irq_domain *irq_domain_create_hierarchy(struct irq_domain *parent,
                .hwirq_max      = size,
                .ops            = ops,
                .host_data      = host_data,
+               .domain_flags   = flags,
+               .parent         = parent,
        };
-       struct irq_domain *domain;
+       struct irq_domain *d;
 
        if (!info.size)
                info.hwirq_max = ~0U;
 
-       domain = __irq_domain_create(&info);
-       if (domain) {
-               if (parent)
-                       domain->root = parent->root;
-               domain->parent = parent;
-               domain->flags |= flags;
-
-               __irq_domain_publish(domain);
-       }
-
-       return domain;
+       d = irq_domain_instantiate(&info);
+       return IS_ERR(d) ? NULL : d;
 }
 EXPORT_SYMBOL_GPL(irq_domain_create_hierarchy);