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powerpc/xics: Give a name to the default XICS IRQ domain

Browse source 
and clean up the error path.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210701132750.1475580-19-clg@kaod.org
This commit is contained in:
Cédric Le Goater 2021-07-01 15:27:36 +02:00 committed by Michael Ellerman
parent 248af248a8
commit 7d14f6c60b
1 changed files with 17 additions and 4 deletions
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21
arch/powerpc/sysdev/xics/xics-common.c
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@ -412,11 +412,22 @@ static const struct irq_domain_ops xics_host_ops = {
.xlate = xics_host_xlate,
};
static void __init xics_init_host(void)
static int __init xics_allocate_domain(void)
{
xics_host = irq_domain_add_tree(NULL, &xics_host_ops, NULL);
BUG_ON(xics_host == NULL);
struct fwnode_handle *fn;
fn = irq_domain_alloc_named_fwnode("XICS");
if (!fn)
return -ENOMEM;
xics_host = irq_domain_create_tree(fn, &xics_host_ops, NULL);
if (!xics_host) {
irq_domain_free_fwnode(fn);
return -ENOMEM;
}
irq_set_default_host(xics_host);
return 0;
}
void __init xics_register_ics(struct ics *ics)
@ -480,6 +491,8 @@ void __init xics_init(void)
/* Initialize common bits */
xics_get_server_size();
xics_update_irq_servers();
xics_init_host();
rc = xics_allocate_domain();
if (rc < 0)
pr_err("XICS: Failed to create IRQ domain");
xics_setup_cpu();
}