Re: [PATCH 1/2 v6] HID: gt683r: fix race condition

From: Johan Hovold
Date: Thu Jul 03 2014 - 13:35:07 EST


On Thu, Jul 03, 2014 at 08:17:08PM +0300, Janne Kanniainen wrote:
> This will fix race condition noticed by Oliver Neukum. Sysfs files are
> created before mutex and work are initialized.
>
> Signed-off-by: Janne Kanniainen <janne.kanniainen@xxxxxxxxx>

Reviewed-by: Johan Hovold <johan@xxxxxxxxxx>

> ---
> drivers/hid/hid-gt683r.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/hid/hid-gt683r.c b/drivers/hid/hid-gt683r.c
> index 077f7a1..073bd80 100644
> --- a/drivers/hid/hid-gt683r.c
> +++ b/drivers/hid/hid-gt683r.c
> @@ -227,6 +227,9 @@ static int gt683r_led_probe(struct hid_device *hdev,
> if (!led)
> return -ENOMEM;
>
> + mutex_init(&led->lock);
> + INIT_WORK(&led->work, gt683r_led_work);
> +
> led->mode = GT683R_LED_NORMAL;
> led->hdev = hdev;
> hid_set_drvdata(hdev, led);
> @@ -271,9 +274,6 @@ static int gt683r_led_probe(struct hid_device *hdev,
> goto fail;
> }
>
> - mutex_init(&led->lock);
> - INIT_WORK(&led->work, gt683r_led_work);
> -
> return 0;
>
> fail:
--
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