[PATCH v2 4/7] KVM: s390: Fix memory leak in guest debug handling

[Christian Borntraeger <borntraeger@linux.ibm.com>]

bp_data is freed only for the error case by kfree(bp_data).
Every successful KVM_SET_GUEST_DEBUG will leak bp_data.

Fixes: 27291e2165b6 ("KVM: s390: hardware support for guest debugging")
Cc: stable@vger.kernel.org
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
---
 arch/s390/kvm/guestdbg.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/s390/kvm/guestdbg.c b/arch/s390/kvm/guestdbg.c
index 69835e1d4f20..4c02dbebb2eb 100644
--- a/arch/s390/kvm/guestdbg.c
+++ b/arch/s390/kvm/guestdbg.c
@@ -267,6 +267,7 @@ int kvm_s390_import_bp_data(struct kvm_vcpu *vcpu,
 	vcpu->arch.guestdbg.hw_bp_info = bp_info;
 	vcpu->arch.guestdbg.nr_hw_wp = nr_wp;
 	vcpu->arch.guestdbg.hw_wp_info = wp_info;
+	kfree(bp_data);
 	return 0;
 error:
 	kfree(bp_data);
-- 
2.53.0