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KVM: Return '0' directly when there's no task to yield to

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Do "return 0" instead of initializing and returning a local variable in
kvm_vcpu_yield_to(), e.g. so that it's more obvious what the function
returns if there is no task.

No functional change intended.

Acked-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240802200136.329973-2-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
This commit is contained in:
Sean Christopherson 2024-08-02 13:01:35 -07:00
parent 7e513617da
commit 6cf9ef23d9
1 changed files with 2 additions and 2 deletions
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4
virt/kvm/kvm_main.c
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@ -3772,7 +3772,7 @@ int kvm_vcpu_yield_to(struct kvm_vcpu *target)
{ {
struct pid *pid; struct pid *pid;
struct task_struct *task = NULL; struct task_struct *task = NULL;
int ret = 0; int ret;
rcu_read_lock(); rcu_read_lock();
pid = rcu_dereference(target->pid); pid = rcu_dereference(target->pid);
@ -3780,7 +3780,7 @@ int kvm_vcpu_yield_to(struct kvm_vcpu *target)
task = get_pid_task(pid, PIDTYPE_PID); task = get_pid_task(pid, PIDTYPE_PID);
rcu_read_unlock(); rcu_read_unlock();
if (!task) if (!task)
return ret; return 0;
ret = yield_to(task, 1); ret = yield_to(task, 1);
put_task_struct(task); put_task_struct(task);