[PATCH -next] irqdomain: Use IS_ERR_OR_NULL() helper function

[Hongbo Li]

Use the IS_ERR_OR_NULL() helper instead of open-coding a
NULL and an error pointer checks to simplify the code and
improve readability.

Signed-off-by: Hongbo Li <lihongbo22@xxxxxxxxxx>
---
 kernel/irq/irqdomain.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 5df8780100bb..e0bff21f30e0 100644
--- a/kernel/irq/irqdomain.c
+++ b/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;
 
 	/*
-- 
2.34.1