gpio: aspeed: fix return value check in aspeed_gpio_probe()

In case of error, the function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/gpio/gpio-aspeed.c b/drivers/gpio/gpio-aspeed.c
index 9f7266e05f0a..8aa340677f65 100644
--- a/drivers/gpio/gpio-aspeed.c
+++ b/drivers/gpio/gpio-aspeed.c
@@ -413,8 +413,8 @@ static int __init aspeed_gpio_probe(struct platform_device *pdev)
                 return -ENXIO;
 
         gpio->base = devm_ioremap_resource(&pdev->dev, res);
-        if (!gpio->base)
-                return -ENOMEM;
+        if (IS_ERR(gpio->base))
+                return PTR_ERR(gpio->base);
 
         spin_lock_init(&gpio->lock);