linux-kernel - Re: Kevent POSIX timers support.

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Message-ID: <e8ac1af10612130521i2bc2032fl81c82b7c513b69c4@mail.gmail.com>
Date:	Wed, 13 Dec 2006 18:51:47 +0530
From:	"Tushar Adeshara" <adesharatushar@...il.com>
To:	"Evgeniy Polyakov" <johnpol@....mipt.ru>,
	linux-kernel@...r.kernel.org
Subject: Re: Kevent POSIX timers support.

On 11/23/06, Evgeniy Polyakov <johnpol@....mipt.ru> wrote:
> On Wed, Nov 22, 2006 at 01:44:16PM +0300, Evgeniy Polyakov (johnpol@....mipt.ru) wrote:
> +static int posix_kevent_init_timer(struct k_itimer *tmr, int fd)
> +{
> +       struct ukevent uk;
> +       struct file *file;
> +       struct kevent_user *u;
> +       int err;
> +
> +       file = fget(fd);
> +       if (!file) {
> +               err = -EBADF;
> +               goto err_out;
> +       }
> +
> +       if (file->f_op != &kevent_user_fops) {
> +               err = -EINVAL;
> +               goto err_out_fput;
> +       }
> +
> +       u = file->private_data;
> +
> +       memset(&uk, 0, sizeof(struct ukevent));
> +
> +       uk.type = KEVENT_POSIX_TIMER;
> +       uk.id.raw_u64 = (unsigned long)(tmr); /* Just cast to something unique */
> +       uk.ptr = tmr;
> +
> +       tmr->it_sigev_value.sival_ptr = file;
> +
> +       err = kevent_user_add_ukevent(&uk, u);

I think these four lines are not required. Irrespective of return
value of kevent_user_add_ukevent(), we are going to release file, and
return err.

> +       if (err)
> +               goto err_out_fput;
> +
> +       fput(file);
> +
> +       return 0;


> +
> +err_out_fput:
> +       fput(file);
> +err_out:
> +       return err;
> +}
> +

-- 
Regards,
Tushar
--------------------
It's not a problem, it's an opportunity for improvement. Lets improve.
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