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spapr/xive: Fix error handling in kvmppc_xive_post_load() 

Now that all these functions return a negative errno on failure, check
that because it is preferred to local_err. And most of all, propagate it
because vmstate expects negative errnos.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <159707850148.1489912.18355118622296682631.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Greg Kurz 2020-08-10 18:55:01 +02:00 committed by David Gibson
parent 42a92d925d
commit a845a54cbe
1 changed files with 18 additions and 17 deletions
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35
hw/intc/spapr_xive_kvm.c
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@ -631,6 +631,7 @@ int kvmppc_xive_post_load(SpaprXive *xive, int version_id)
Error *local_err = NULL;
CPUState *cs;
int i;
int ret;
/* The KVM XIVE device should be in use */
assert(xive->fd != -1);
@ -641,11 +642,10 @@ int kvmppc_xive_post_load(SpaprXive *xive, int version_id)
continue;
}
kvmppc_xive_set_queue_config(xive, SPAPR_XIVE_BLOCK_ID, i,
&xive->endt[i], &local_err);
if (local_err) {
error_report_err(local_err);
return -1;
ret = kvmppc_xive_set_queue_config(xive, SPAPR_XIVE_BLOCK_ID, i,
&xive->endt[i], &local_err);
if (ret < 0) {
goto fail;
}
}
@ -660,16 +660,14 @@ int kvmppc_xive_post_load(SpaprXive *xive, int version_id)
* previously set in KVM. Since we don't do that for all interrupts
* at reset time anymore, let's do it now.
*/
kvmppc_xive_source_reset_one(&xive->source, i, &local_err);
if (local_err) {
error_report_err(local_err);
return -1;
ret = kvmppc_xive_source_reset_one(&xive->source, i, &local_err);
if (ret < 0) {
goto fail;
}
kvmppc_xive_set_source_config(xive, i, &xive->eat[i], &local_err);
if (local_err) {
error_report_err(local_err);
return -1;
ret = kvmppc_xive_set_source_config(xive, i, &xive->eat[i], &local_err);
if (ret < 0) {
goto fail;
}
}
@ -686,15 +684,18 @@ int kvmppc_xive_post_load(SpaprXive *xive, int version_id)
CPU_FOREACH(cs) {
PowerPCCPU *cpu = POWERPC_CPU(cs);
kvmppc_xive_cpu_set_state(spapr_cpu_state(cpu)->tctx, &local_err);
if (local_err) {
error_report_err(local_err);
return -1;
ret = kvmppc_xive_cpu_set_state(spapr_cpu_state(cpu)->tctx, &local_err);
if (ret < 0) {
goto fail;
}
}
/* The source states will be restored when the machine starts running */
return 0;
fail:
error_report_err(local_err);
return ret;
}
/* Returns MAP_FAILED on error and sets errno */