Re: [PATCH] KVM: remove redundant NULL tests

[Bill Davidsen <davidsen@tmr.com>]

Roel Kluin wrote:
> kvm_get_exit_data() cannot return a NULL pointer.
> 
> Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
> ---
>  arch/ia64/kvm/kvm_fw.c |   28 +++++++++++++---------------
>  1 files changed, 13 insertions(+), 15 deletions(-)
> 
> diff --git a/arch/ia64/kvm/kvm_fw.c b/arch/ia64/kvm/kvm_fw.c
> index e4b8231..cb548ee 100644
> --- a/arch/ia64/kvm/kvm_fw.c
> +++ b/arch/ia64/kvm/kvm_fw.c
> @@ -75,7 +75,7 @@ static void set_pal_result(struct kvm_vcpu *vcpu,
>  	struct exit_ctl_data *p;
>  
>  	p = kvm_get_exit_data(vcpu);
> -	if (p && p->exit_reason == EXIT_REASON_PAL_CALL) {
> +	if (p->exit_reason == EXIT_REASON_PAL_CALL) {
>  		p->u.pal_data.ret = result;
>  		return ;
>  	}
	[___etc___]

Clearly the original author thought that there was a path where kvm_exit_data 
could return a NULL pointer, was that ever possible?

-- 
Bill Davidsen <davidsen@tmr.com>
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot