diff options
| author | Wei Yongjun <weiyongjun1@huawei.com> | 2021-06-08 17:38:53 +0300 |
|---|---|---|
| committer | Bartosz Golaszewski <bgolaszewski@baylibre.com> | 2021-06-11 21:57:59 +0300 |
| commit | 622096fdff79458436b7387a86a5c9f000785e4f (patch) | |
| tree | 15a9b862d0c12f790d3f77bd2c09155e59f54f38 /drivers/gpio | |
| parent | 354cb6465a9b04df1e99a43fdd22881ad5c91843 (diff) | |
| download | linux-622096fdff79458436b7387a86a5c9f000785e4f.tar.xz | |
gpio: idt3243x: Fix return value check in idt_gpio_probe()
In case of error, the function devm_platform_ioremap_resource_byname()
returns ERR_PTR() and never returns NULL. The NULL test in the return
value check should be replaced with IS_ERR().
Fixes: 4195926aedca ("gpio: Add support for IDT 79RC3243x GPIO controller")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-idt3243x.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpio/gpio-idt3243x.c b/drivers/gpio/gpio-idt3243x.c index e961acee1571..50003ad2e589 100644 --- a/drivers/gpio/gpio-idt3243x.c +++ b/drivers/gpio/gpio-idt3243x.c @@ -142,8 +142,8 @@ static int idt_gpio_probe(struct platform_device *pdev) return -ENOMEM; ctrl->gpio = devm_platform_ioremap_resource_byname(pdev, "gpio"); - if (!ctrl->gpio) - return -ENOMEM; + if (IS_ERR(ctrl->gpio)) + return PTR_ERR(ctrl->gpio); ctrl->gc.parent = dev; @@ -160,8 +160,8 @@ static int idt_gpio_probe(struct platform_device *pdev) if (device_property_read_bool(dev, "interrupt-controller")) { ctrl->pic = devm_platform_ioremap_resource_byname(pdev, "pic"); - if (!ctrl->pic) - return -ENOMEM; + if (IS_ERR(ctrl->pic)) + return PTR_ERR(ctrl->pic); parent_irq = platform_get_irq(pdev, 0); if (!parent_irq) |