tpm: Set transationStarted to false if commit failed

Set the transactionStarted to false if the commit failed. If this is not
done, then the failure path will report 'no transaction is set' and hide
more useful error reports.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20190726210706.24440-2-stefanb@linux.ibm.com>

src/qemu/qemu_security.c

@@ -476,7 +476,7 @@ qemuSecurityStartTPMEmulator(virQEMUDriverPtr driver,
 
     if (virSecurityManagerTransactionCommit(driver->securityManager,
                                             -1, priv->rememberOwner) < 0)
-        goto cleanup;
+        goto cleanup_abort;
     transactionStarted = false;
 
     if (virSecurityManagerSetChildProcessLabel(driver->securityManager,
@@ -512,6 +512,7 @@ qemuSecurityStartTPMEmulator(virQEMUDriverPtr driver,
                                             -1, priv->rememberOwner) < 0)
         VIR_WARN("Unable to run security manager transaction");
 
+ cleanup_abort:
     virSecurityManagerTransactionAbort(driver->securityManager);
     return ret;
 }