[patch 04/55] genirq/msi: Prevent overwriting domain name

[Thomas Gleixner]

Prevent overwriting an already assigned domain name. Remove the extra check
for chip->name, because if domain->name is NULL overwriting it with NULL is
not a problem.

Signed-off-by: Thomas Gleixner <t...@linutronix.de>
---
 kernel/irq/msi.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -274,7 +274,8 @@ struct irq_domain *msi_create_irq_domain
 
        domain = irq_domain_create_hierarchy(parent, IRQ_DOMAIN_FLAG_MSI, 0,
                                             fwnode, &msi_domain_ops, info);
-       if (domain && info->chip && info->chip->name)
+
+       if (domain && !domain->name && info->chip)
                domain->name = info->chip->name;
 
        return domain;