KVM: Fix spelling in code comments

Fix spelling and typos (e.g., repeated words) in comments.

Signed-off-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200401140310.29701-1-tabba@google.com

virt/kvm/coalesced_mmio.c

@@ -119,7 +119,7 @@ int kvm_coalesced_mmio_init(struct kvm *kvm)
 
 	/*
 	 * We're using this spinlock to sync access to the coalesced ring.
-	 * The list doesn't need it's own lock since device registration and
+	 * The list doesn't need its own lock since device registration and
 	 * unregistration should only happen when kvm->slots_lock is held.
 	 */
 	spin_lock_init(&kvm->ring_lock);

virt/kvm/eventfd.c

@@ -116,7 +116,7 @@ irqfd_shutdown(struct work_struct *work)
 	struct kvm *kvm = irqfd->kvm;
 	u64 cnt;
 
-	/* Make sure irqfd has been initalized in assign path. */
+	/* Make sure irqfd has been initialized in assign path. */
 	synchronize_srcu(&kvm->irq_srcu);
 
 	/*

virt/kvm/kvm_main.c

@@ -2799,7 +2799,7 @@ EXPORT_SYMBOL_GPL(kvm_vcpu_yield_to);
  *
  *  (a) VCPU which has not done pl-exit or cpu relax intercepted recently
  *  (preempted lock holder), indicated by @in_spin_loop.
- *  Set at the beiginning and cleared at the end of interception/PLE handler.
+ *  Set at the beginning and cleared at the end of interception/PLE handler.
  *
  *  (b) VCPU which has done pl-exit/ cpu relax intercepted but did not get
  *  chance last time (mostly it has become eligible now since we have probably