[v2,17/50] KVM: arm64: Free hypervisor allocations if vector slot init fails

Commit Message

Sean Christopherson Nov. 30, 2022, 11:09 p.m. UTC

Teardown hypervisor mode if vector slot setup fails in order to avoid
leaking any allocations done by init_hyp_mode().

Fixes: b881cdce77b4 ("KVM: arm64: Allocate hyp vectors statically")
Signed-off-by: Sean Christopherson <[e-mail]>
---
 arch/arm64/kvm/arm.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

Patch

diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 07f5cef5c33b..fa986ebb4793 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -2237,18 +2237,18 @@  int kvm_arch_init(void *opaque)
 	err = kvm_init_vector_slots();
 	if (err) {
 		kvm_err("Cannot initialise vector slots\n");
-		goto out_err;
-	}
-
-	err = init_subsystems();
-	if (err)
 		goto out_hyp;
+	}
+
+	err = init_subsystems();
+	if (err)
+		goto out_subs;
 
 	if (!in_hyp_mode) {
 		err = finalize_hyp_mode();
 		if (err) {
 			kvm_err("Failed to finalize Hyp protection\n");
-			goto out_hyp;
+			goto out_subs;
 		}
 	}
 
@@ -2262,8 +2262,9 @@  int kvm_arch_init(void *opaque)
 
 	return 0;
 
-out_hyp:
+out_subs:
 	hyp_cpu_pm_exit();
+out_hyp:
 	if (!in_hyp_mode)
 		teardown_hyp_mode();
 out_err: