[PATCH v2] platform/x86: dell-laptop: fix missing cleanups in init error path

[Haoxiang Li]

dell_init() initializes several resources after dell_setup_rfkill(),
including the optional touchpad LED, keyboard backlight LED, battery
hook, debugfs directory and dell-laptop notifier.

If a later LED or backlight registration fails, the error path only
tears down the battery hook and rfkill resources. This leaves the
notifier, debugfs directory, keyboard backlight LED and optional
touchpad LED registered after dell_init() returns an error.

Add the missing cleanup calls before tearing down rfkill.

Fixes: 9c656b07997f ("platform/x86: dell-*: Call new led hw_changed API on kbd brightness change")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Haoxiang Li <lihaoxiang@xxxxxxxxxxxxxxxx>
---
Changes in v2:
 - Fix all missing cleanups in dell_init()'s error path.
 - Add Fixes tags.
 - Modify the commit title and message.
---
 drivers/platform/x86/dell/dell-laptop.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/platform/x86/dell/dell-laptop.c b/drivers/platform/x86/dell/dell-laptop.c
index 57748c3ea24f..053f40572bf6 100644
--- a/drivers/platform/x86/dell/dell-laptop.c
+++ b/drivers/platform/x86/dell/dell-laptop.c
@@ -2551,7 +2551,12 @@ static int __init dell_init(void)
 	if (mute_led_registered)
 		led_classdev_unregister(&mute_led_cdev);
 fail_led:
+	dell_laptop_unregister_notifier(&dell_laptop_notifier);
+	debugfs_remove_recursive(dell_laptop_dir);
 	dell_battery_exit();
+	kbd_led_exit();
+	if (quirks && quirks->touchpad_led)
+		touchpad_led_exit();
 	dell_cleanup_rfkill();
 fail_rfkill:
 	platform_device_del(platform_device);
-- 
2.25.1