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| author | Axel Lin <axel.lin@gmail.com> | 2011-08-08 09:14:19 (GMT) |
|---|---|---|
| committer | Matthew Garrett <mjg@redhat.com> | 2011-10-24 14:52:38 (GMT) |
| commit | 5d6afd150321a9e6f1180f5dced9032cce6861ac (patch) | |
| tree | 83442856b52952204938be7873629ac79189a7d6 /drivers/platform | |
| parent | 33989ba6f7feb3d03916e42d7775d802d2fdea1e (diff) | |
| download | linux-5d6afd150321a9e6f1180f5dced9032cce6861ac.tar.xz | |
platform-drivers-x86: eeepc-laptop: fix wrong test for successful registered led_classdev
device_create returns &struct device pointer on success, or ERR_PTR() on error.
Thus if led_classdev_register fails, led_cdev->dev is always not NULL.
If IS_ERR(eeepc->tpd_led.dev) is ture, it means led_classdev_register fails.
If (asus->tpd_led.dev) is NULL, it means we call eeepc_led_exit before
calling led_classdev_register for &eeepc->tpd_led.
We only want to call led_classdev_unregister for sucessfully registered
led_classdev, then we should check (!IS_ERR_OR_NULL(eeepc->tpd_led.dev)).
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/eeepc-laptop.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 1c45d92..ea44abd 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -568,7 +568,7 @@ static int eeepc_led_init(struct eeepc_laptop *eeepc) static void eeepc_led_exit(struct eeepc_laptop *eeepc) { - if (eeepc->tpd_led.dev) + if (!IS_ERR_OR_NULL(eeepc->tpd_led.dev)) led_classdev_unregister(&eeepc->tpd_led); if (eeepc->led_workqueue) destroy_workqueue(eeepc->led_workqueue); |