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ppc/xive: Fix error handling in vmstate_xive_tctx_*() callbacks

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Now that kvmppc_xive_cpu_get_state() and kvmppc_xive_cpu_set_state()
return negative errnos on failures, use that instead local_err because
it is the recommended practice. Also return that instead of -1 since
vmstate expects negative errnos.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <159707850840.1489912.14912810818646455474.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Greg Kurz 2020-08-10 18:55:08 +02:00 committed by David Gibson
parent a845a54cbe
commit 2a8100cb61
1 changed files with 8 additions and 6 deletions
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14
hw/intc/xive.c
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@ -695,12 +695,13 @@ static int vmstate_xive_tctx_pre_save(void *opaque)
{
XiveTCTX *tctx = XIVE_TCTX(opaque);
Error *local_err = NULL;
int ret;
if (xive_in_kernel(tctx->xptr)) {
kvmppc_xive_cpu_get_state(tctx, &local_err);
if (local_err) {
ret = kvmppc_xive_cpu_get_state(tctx, &local_err);
if (ret < 0) {
error_report_err(local_err);
return -1;
return ret;
}
}
@ -711,16 +712,17 @@ static int vmstate_xive_tctx_post_load(void *opaque, int version_id)
{
XiveTCTX *tctx = XIVE_TCTX(opaque);
Error *local_err = NULL;
int ret;
if (xive_in_kernel(tctx->xptr)) {
/*
* Required for hotplugged CPU, for which the state comes
* after all states of the machine.
*/
kvmppc_xive_cpu_set_state(tctx, &local_err);
if (local_err) {
ret = kvmppc_xive_cpu_set_state(tctx, &local_err);
if (ret < 0) {
error_report_err(local_err);
return -1;
return ret;
}
}