[PATCH v2 1/3] KVM: arm64: Avoid re-testing walk_continue

[Leonardo Bras <leo.bras@arm.com>]

In __kvm_pgtable_visit(), a couple tests for kvm_pgtable_walk_continue()
will 'goto out' if it should not continue. This means the same test will be
ran again before returning ret, which is unnecessary.

Return ret directly instead.
This will simplify next patch.

Signed-off-by: Leonardo Bras <leo.bras@arm.com>
---
 arch/arm64/kvm/hyp/pgtable.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index 91a7dfad6686..4be1d51a6ac5 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -183,32 +183,32 @@ static inline int __kvm_pgtable_visit(struct kvm_pgtable_walk_data *data,
 	 * Reload the page table after invoking the walker callback for leaf
 	 * entries or after pre-order traversal, to allow the walker to descend
 	 * into a newly installed or replaced table.
 	 */
 	if (reload) {
 		ctx.old = READ_ONCE(*ptep);
 		table = kvm_pte_table(ctx.old, level);
 	}
 
 	if (!kvm_pgtable_walk_continue(data->walker, ret))
-		goto out;
+		return ret;
 
 	if (!table) {
 		data->addr = ALIGN_DOWN(data->addr, kvm_granule_size(level));
 		data->addr += kvm_granule_size(level);
 		goto out;
 	}
 
 	childp = (kvm_pteref_t)kvm_pte_follow(ctx.old, mm_ops);
 	ret = __kvm_pgtable_walk(data, mm_ops, childp, level + 1);
 	if (!kvm_pgtable_walk_continue(data->walker, ret))
-		goto out;
+		return ret;
 
 	if (ctx.flags & KVM_PGTABLE_WALK_TABLE_POST)
 		ret = kvm_pgtable_visitor_cb(data, &ctx, KVM_PGTABLE_WALK_TABLE_POST);
 
 out:
 	if (kvm_pgtable_walk_continue(data->walker, ret))
 		return 0;
 
 	return ret;
 }
-- 
2.54.0