irqdomain: Use return value of strreplace()

Since strreplace() returns the pointer to the string itself, use it
directly.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230628150251.17832-1-andriy.shevchenko@linux.intel.com

kernel/irq/irqdomain.c

@@ -182,9 +182,7 @@ static struct irq_domain *__irq_domain_create(struct fwnode_handle *fwnode,
 			return NULL;
 		}
 
-		strreplace(name, '/', ':');
-
-		domain->name = name;
+		domain->name = strreplace(name, '/', ':');
 		domain->fwnode = fwnode;
 		domain->flags |= IRQ_DOMAIN_NAME_ALLOCATED;
 	}