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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-07-31 18:16:02 +0930
committerLen Brown <len.brown@intel.com>2009-08-28 15:17:08 -0400
commit72afeeafe54853881a4e53dc78d538e249130ad8 (patch)
treef31f9be2ed7856762b7c763f9c00aabc9b69f6b2 /drivers/platform
parent67059406219d30a36b7ca93f863eb1f3032f05ce (diff)
downloadop-kernel-dev-72afeeafe54853881a4e53dc78d538e249130ad8.zip
op-kernel-dev-72afeeafe54853881a4e53dc78d538e249130ad8.tar.gz
fujitsu-laptop: driver [un]registration fixes
* Move led_classdev_unregister() calls from fujitsu_cleanup() to acpi_fujitsu_hotkey_remove(). * Fix ordering in fujitsu_cleanup(). * Fix backlight_device_register() failure handling in fujitsu_init(). * Add missing sysfs group removal on failure to fujitsu_init(). * Add input device unregistering on failure to acpi_fujitsu_add() and acpi_fujitsu_hotkey_add(). * Add input device unregistering/freeing to acpi_fujitsu_remove() and acpi_fujitsu_hotkey_remove() (also remove superfluous 'device' and 'acpi_driver_data(device)' checks while at it). * Do few minor cleanups. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Acked-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/x86/fujitsu-laptop.c86
1 files changed, 41 insertions, 45 deletions
diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
index f9e3e3a..b87a5a2 100644
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -691,7 +691,7 @@ static int acpi_fujitsu_add(struct acpi_device *device)
result = acpi_bus_get_power(fujitsu->acpi_handle, &state);
if (result) {
printk(KERN_ERR "Error reading power state\n");
- goto end;
+ goto err_unregister_input_dev;
}
printk(KERN_INFO PREFIX "%s [%s] (%s)\n",
@@ -722,22 +722,22 @@ static int acpi_fujitsu_add(struct acpi_device *device)
return result;
-end:
+err_unregister_input_dev:
+ input_unregister_device(input);
err_free_input_dev:
input_free_device(input);
err_stop:
-
return result;
}
static int acpi_fujitsu_remove(struct acpi_device *device, int type)
{
- struct fujitsu_t *fujitsu = NULL;
+ struct fujitsu_t *fujitsu = acpi_driver_data(device);
+ struct input_dev *input = fujitsu->input;
- if (!device || !acpi_driver_data(device))
- return -EINVAL;
+ input_unregister_device(input);
- fujitsu = acpi_driver_data(device);
+ input_free_device(input);
fujitsu->acpi_handle = NULL;
@@ -862,7 +862,7 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
result = acpi_bus_get_power(fujitsu_hotkey->acpi_handle, &state);
if (result) {
printk(KERN_ERR "Error reading power state\n");
- goto end;
+ goto err_unregister_input_dev;
}
printk(KERN_INFO PREFIX "%s [%s] (%s)\n",
@@ -902,7 +902,7 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
printk(KERN_INFO "fujitsu-laptop: BTNI: [0x%x]\n",
call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0));
- #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
+#if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) {
result = led_classdev_register(&fujitsu->pf_device->dev,
&logolamp_led);
@@ -925,33 +925,41 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
"LED handler for keyboard lamps, error %i\n", result);
}
}
- #endif
+#endif
return result;
-end:
+err_unregister_input_dev:
+ input_unregister_device(input);
err_free_input_dev:
input_free_device(input);
err_free_fifo:
kfifo_free(fujitsu_hotkey->fifo);
err_stop:
-
return result;
}
static int acpi_fujitsu_hotkey_remove(struct acpi_device *device, int type)
{
- struct fujitsu_hotkey_t *fujitsu_hotkey = NULL;
+ struct fujitsu_hotkey_t *fujitsu_hotkey = acpi_driver_data(device);
+ struct input_dev *input = fujitsu_hotkey->input;
- if (!device || !acpi_driver_data(device))
- return -EINVAL;
+#ifdef CONFIG_LEDS_CLASS
+ if (fujitsu_hotkey->logolamp_registered)
+ led_classdev_unregister(&logolamp_led);
+
+ if (fujitsu_hotkey->kblamps_registered)
+ led_classdev_unregister(&kblamps_led);
+#endif
- fujitsu_hotkey = acpi_driver_data(device);
+ input_unregister_device(input);
- fujitsu_hotkey->acpi_handle = NULL;
+ input_free_device(input);
kfifo_free(fujitsu_hotkey->fifo);
+ fujitsu_hotkey->acpi_handle = NULL;
+
return 0;
}
@@ -1121,8 +1129,11 @@ static int __init fujitsu_init(void)
fujitsu->bl_device =
backlight_device_register("fujitsu-laptop", NULL, NULL,
&fujitsubl_ops);
- if (IS_ERR(fujitsu->bl_device))
- return PTR_ERR(fujitsu->bl_device);
+ if (IS_ERR(fujitsu->bl_device)) {
+ ret = PTR_ERR(fujitsu->bl_device);
+ fujitsu->bl_device = NULL;
+ goto fail_sysfs_group;
+ }
max_brightness = fujitsu->max_brightness;
fujitsu->bl_device->props.max_brightness = max_brightness - 1;
fujitsu->bl_device->props.brightness = fujitsu->brightness_level;
@@ -1162,32 +1173,22 @@ static int __init fujitsu_init(void)
return 0;
fail_hotkey1:
-
kfree(fujitsu_hotkey);
-
fail_hotkey:
-
platform_driver_unregister(&fujitsupf_driver);
-
fail_backlight:
-
if (fujitsu->bl_device)
backlight_device_unregister(fujitsu->bl_device);
-
+fail_sysfs_group:
+ sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
+ &fujitsupf_attribute_group);
fail_platform_device2:
-
platform_device_del(fujitsu->pf_device);
-
fail_platform_device1:
-
platform_device_put(fujitsu->pf_device);
-
fail_platform_driver:
-
acpi_bus_unregister_driver(&acpi_fujitsu_driver);
-
fail_acpi:
-
kfree(fujitsu);
return ret;
@@ -1195,28 +1196,23 @@ fail_acpi:
static void __exit fujitsu_cleanup(void)
{
- #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
- if (fujitsu_hotkey->logolamp_registered != 0)
- led_classdev_unregister(&logolamp_led);
+ acpi_bus_unregister_driver(&acpi_fujitsu_hotkey_driver);
- if (fujitsu_hotkey->kblamps_registered != 0)
- led_classdev_unregister(&kblamps_led);
- #endif
+ kfree(fujitsu_hotkey);
- sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
- &fujitsupf_attribute_group);
- platform_device_unregister(fujitsu->pf_device);
platform_driver_unregister(&fujitsupf_driver);
+
if (fujitsu->bl_device)
backlight_device_unregister(fujitsu->bl_device);
- acpi_bus_unregister_driver(&acpi_fujitsu_driver);
+ sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
+ &fujitsupf_attribute_group);
- kfree(fujitsu);
+ platform_device_unregister(fujitsu->pf_device);
- acpi_bus_unregister_driver(&acpi_fujitsu_hotkey_driver);
+ acpi_bus_unregister_driver(&acpi_fujitsu_driver);
- kfree(fujitsu_hotkey);
+ kfree(fujitsu);
printk(KERN_INFO "fujitsu-laptop: driver unloaded.\n");
}
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