irqdomain: Use IS_ERR_OR_NULL() in irq_domain_trim_hierarchy()

Use IS_ERR_OR_NULL() instead of open-coding a NULL and a error pointer
check.

Signed-off-by: Hongbo Li <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Link: https://lore.kernel.org/all/[email protected]

Author: Hongbo Li

kernel/irq/irqdomain.c

@@ -1403,7 +1403,7 @@ static int irq_domain_trim_hierarchy(unsigned int virq)
 	tail = NULL;
 
 	/* The first entry must have a valid irqchip */
-	if (!irq_data->chip || IS_ERR(irq_data->chip))
+	if (IS_ERR_OR_NULL(irq_data->chip))
 		return -EINVAL;
 
 	/*