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From 1ad707f19e570b76c1f6517194d9cc86b084014d Mon Sep 17 00:00:00 2001
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Message-Id: <1ad707f19e570b76c1f6517194d9cc86b084014d@dist-git>
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From: Peter Krempa <pkrempa@redhat.com>
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Date: Thu, 1 Dec 2022 17:02:42 +0100
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Subject: [PATCH] qemuAgentGetDisks: Don't use virJSONValueObjectGetStringArray
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for optional data
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The 'dependencies' field in the return data may be missing in some
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cases. Historically 'virJSONValueObjectGetStringArray' didn't report
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error in such case, but later refactor (commit 043b50b948ef3c2 ) added
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an error in order to use it in other places too.
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Unfortunately this results in the error log being spammed with an
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irrelevant error in case when qemuAgentGetDisks is invoked on a VM
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running windows.
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Replace the use of virJSONValueObjectGetStringArray by fetching the
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array first and calling virJSONValueArrayToStringList only when we have
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an array.
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Fixes: 043b50b948ef3c2a4adf5fa32a93ec2589851ac6
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Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2149752
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Signed-off-by: Peter Krempa <pkrempa@redhat.com>
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Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
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(cherry picked from commit 3b576601dfb924bb518870a01de5d1a421cbb467)
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---
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src/qemu/qemu_agent.c | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/src/qemu/qemu_agent.c b/src/qemu/qemu_agent.c
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index f33cd47078..8a55044c9e 100644
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--- a/src/qemu/qemu_agent.c
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+++ b/src/qemu/qemu_agent.c
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@@ -2550,6 +2550,7 @@ int qemuAgentGetDisks(qemuAgent *agent,
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for (i = 0; i < ndata; i++) {
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virJSONValue *addr;
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virJSONValue *entry = virJSONValueArrayGet(data, i);
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+ virJSONValue *dependencies;
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qemuAgentDiskInfo *disk;
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if (!entry) {
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@@ -2575,7 +2576,11 @@ int qemuAgentGetDisks(qemuAgent *agent,
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goto error;
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}
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- disk->dependencies = virJSONValueObjectGetStringArray(entry, "dependencies");
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+ if ((dependencies = virJSONValueObjectGetArray(entry, "dependencies"))) {
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+ if (!(disk->dependencies = virJSONValueArrayToStringList(dependencies)))
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+ goto error;
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+ }
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+
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disk->alias = g_strdup(virJSONValueObjectGetString(entry, "alias"));
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addr = virJSONValueObjectGetObject(entry, "address");
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if (addr) {
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--
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2.39.0
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