[PATCH 4.19 03/38] gpio: mockup: fix resource leak in error path

[Greg Kroah-Hartman]

From: Bartosz Golaszewski <bgolaszew...@baylibre.com>

commit 1b02d9e770cd7087f34c743f85ccf5ea8372b047 upstream.

If the module init function fails after creating the debugs directory,
it's never removed. Add proper cleanup calls to avoid this resource
leak.

Fixes: 9202ba2397d1 ("gpio: mockup: implement event injecting over debugfs")
Cc: <sta...@vger.kernel.org>
Signed-off-by: Bartosz Golaszewski <bgolaszew...@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevche...@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/gpio/gpio-mockup.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/gpio/gpio-mockup.c
+++ b/drivers/gpio/gpio-mockup.c
@@ -367,6 +367,7 @@ static int __init gpio_mockup_init(void)
        err = platform_driver_register(&gpio_mockup_driver);
        if (err) {
                gpio_mockup_err("error registering platform driver\n");
+               debugfs_remove_recursive(gpio_mockup_dbg_dir);
                return err;
        }
 
@@ -386,6 +387,7 @@ static int __init gpio_mockup_init(void)
                        gpio_mockup_err("error registering device");
                        platform_driver_unregister(&gpio_mockup_driver);
                        gpio_mockup_unregister_pdevs();
+                       debugfs_remove_recursive(gpio_mockup_dbg_dir);
                        return PTR_ERR(pdev);
                }