[PATCH 21/21] KVM: SEV: Goto an existing error label if charging misc_cg for an ASID fails

[Sean Christopherson]

Dedup a small amount of cleanup code in SEV ASID allocation by reusing
an existing error label.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
 arch/x86/kvm/svm/sev.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index c35eb9e30993..32d7f329f92c 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -289,14 +289,11 @@ static int sev_asid_new(struct kvm_sev_info *sev, unsigned long vm_type)
 	if (min_asid > max_asid)
 		return -ENOTTY;
 
-	WARN_ON(sev->misc_cg);
+	WARN_ON_ONCE(sev->misc_cg);
 	sev->misc_cg = get_current_misc_cg();
 	ret = sev_misc_cg_try_charge(sev);
-	if (ret) {
-		put_misc_cg(sev->misc_cg);
-		sev->misc_cg = NULL;
-		return ret;
-	}
+	if (ret)
+		goto e_put_cg;
 
 	asid = sev_alloc_asid(min_asid, max_asid);
 	if (asid > max_asid) {
@@ -306,8 +303,10 @@ static int sev_asid_new(struct kvm_sev_info *sev, unsigned long vm_type)
 
 	sev->asid = asid;
 	return 0;
+
 e_uncharge:
 	sev_misc_cg_uncharge(sev);
+e_put_cg:
 	put_misc_cg(sev->misc_cg);
 	sev->misc_cg = NULL;
 	return ret;
-- 
2.53.0.473.g4a7958ca14-goog