[Lguest] [PATCH 05/16] make write() operation smp aware
Rusty Russell
rusty at rustcorp.com.au
Wed Dec 26 10:40:24 EST 2007
On Friday 21 December 2007 00:33:45 Glauber de Oliveira Costa wrote:
> --- a/drivers/lguest/lguest_user.c
> +++ b/drivers/lguest/lguest_user.c
> @@ -223,14 +223,21 @@ static ssize_t write(struct file *file, const char
...
> /* If you haven't initialized, you must do that first. */
> - if (req != LHREQ_INITIALIZE && !lg)
> - return -EINVAL;
> + if (req != LHREQ_INITIALIZE) {
> + if (!lg)
> + return -EINVAL;
> + vcpu = &lg->vcpus[vcpu_id];
> + if (!vcpu)
> + return -EINVAL;
> + }
Bounds check again...
Cheers,
Rusty.
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