If we failed to create the top debugfs directory, we must not try to
create the child nodes. We currently only check if gpio_mockup_dbg_dir
is not NULL, but it can also contain an errno if debugfs is disabled
in build options. Use IS_ERR_OR_NULL() instead.

Signed-off-by: Bartosz Golaszewski <redacted>
---
 drivers/gpio/gpio-mockup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-mockup.c b/drivers/gpio/gpio-mockup.c
index 3a545ad17817..b5876b07b0f7 100644
--- a/drivers/gpio/gpio-mockup.c
+++ b/drivers/gpio/gpio-mockup.c

@@ -314,7 +314,7 @@ static int gpio_mockup_probe(struct platform_device *pdev)
        if (rv)
                return rv;

-       if (gpio_mockup_dbg_dir)
+       if (!IS_ERR_OR_NULL(gpio_mockup_dbg_dir))
                gpio_mockup_debugfs_setup(dev, chip);

        return 0;
--

2.16.1