Hi John,
> +static int
> +ltq_wdt_open(struct inode *inode, struct file *file)
> +{
> + if (ltq_wdt_in_use)
> + return -EBUSY;
> + ltq_wdt_in_use = 1;
> + ltq_wdt_enable();
> +
> + return nonseekable_open(inode, file);
> +}
I prefer to see a test_and_set_bit(ltq_wdt_in_use) and a ...
> +static int
> +ltq_wdt_release(struct inode *inode, struct file *file)
> +{
> + if (ltq_wdt_ok_to_close)
> + ltq_wdt_disable();
> + else
> + pr_err("ltq_wdt: watchdog closed without warning\n");
> + ltq_wdt_ok_to_close = 0;
> + ltq_wdt_in_use = 0;
> +
> + return 0;
> +}
... clear_bit(ltq_wdt_in_use);
For the rest is looks ok for me. So Signed-off-by: Wim Van Sebroeck <wim@xxxxxxxxx>
Kind regards,
Wim.
