[PATCH] irqchip/aspeed-i2c-ic: Fix return value check in aspeed_i2c_ic_of_init()

[Wei Yongjun]

In case of error, the function of_iomap() returns NULL pointer not
ERR_PTR(). The IS_ERR() test in the return value check should be
replaced with NULL test..

Signed-off-by: Wei Yongjun <weiyongjun1 at huawei.com>
---
 drivers/irqchip/irq-aspeed-i2c-ic.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/irqchip/irq-aspeed-i2c-ic.c b/drivers/irqchip/irq-aspeed-i2c-ic.c
index 815b88d..f20200a 100644
--- a/drivers/irqchip/irq-aspeed-i2c-ic.c
+++ b/drivers/irqchip/irq-aspeed-i2c-ic.c
@@ -76,8 +76,8 @@ static int __init aspeed_i2c_ic_of_init(struct device_node *node,
 		return -ENOMEM;
 
 	i2c_ic->base = of_iomap(node, 0);
-	if (IS_ERR(i2c_ic->base)) {
-		ret = PTR_ERR(i2c_ic->base);
+	if (!i2c_ic->base) {
+		ret = -ENOMEM;
 		goto err_free_ic;
 	}