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util: Use consistent error preservation and restoration calls

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Provide some consistency over error message variable name and usage
when saving error messages across possible other errors or possibility
of resetting of the last error.

Instead of virSaveLastError paired up with virSetError and virFreeError,
we should use the newer virErrorPreserveLast and virRestoreError.

Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
John Ferlan 2018-12-06 12:33:39 -05:00
parent 7c47becf76
commit 5af7c72c9c
2 changed files with 12 additions and 12 deletions
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18
src/util/vircgroup.c
View File

@ -1168,13 +1168,12 @@ virCgroupNewMachineSystemd(const char *name,
}
if (virCgroupAddProcess(*group, pidleader) < 0) {
virErrorPtr saved = virSaveLastError();
virErrorPtr saved;
virErrorPreserveLast(&saved);
virCgroupRemove(*group);
virCgroupFree(group);
if (saved) {
virSetError(saved);
virFreeError(saved);
}
virErrorRestore(&saved);
}
return 0;
@ -1220,13 +1219,12 @@ virCgroupNewMachineManual(const char *name,
goto cleanup;
if (virCgroupAddProcess(*group, pidleader) < 0) {
virErrorPtr saved = virSaveLastError();
virErrorPtr saved;
virErrorPreserveLast(&saved);
virCgroupRemove(*group);
virCgroupFree(group);
if (saved) {
virSetError(saved);
virFreeError(saved);
}
virErrorRestore(&saved);
}
done:

6
src/util/virfirewall.c
View File

@ -838,7 +838,9 @@ virFirewallApply(virFirewallPtr firewall)
if (virFirewallApplyGroup(firewall, i) < 0) {
VIR_DEBUG("Rolling back groups up to %zu for %p", i, firewall);
size_t first = i;
g_autoptr(virError) saved_error = virSaveLastError();
virErrorPtr saved_error;
virErrorPreserveLast(&saved_error);
/*
* Look at any inheritance markers to figure out
@ -858,7 +860,7 @@ virFirewallApply(virFirewallPtr firewall)
virFirewallRollbackGroup(firewall, j);
}
virSetError(saved_error);
virErrorRestore(&saved_error);
VIR_DEBUG("Done rolling back groups for %p", firewall);
goto cleanup;
}