From 6725459d1b7d326b65ce4f19640a49851b54ae9b Mon Sep 17 00:00:00 2001 Message-Id: <6725459d1b7d326b65ce4f19640a49851b54ae9b@dist-git> From: Peter Krempa Date: Thu, 1 Dec 2022 17:02:42 +0100 Subject: [PATCH] qemuAgentGetDisks: Don't use virJSONValueObjectGetStringArray for optional data The 'dependencies' field in the return data may be missing in some cases. Historically 'virJSONValueObjectGetStringArray' didn't report error in such case, but later refactor (commit 043b50b948ef3c2 ) added an error in order to use it in other places too. Unfortunately this results in the error log being spammed with an irrelevant error in case when qemuAgentGetDisks is invoked on a VM running windows. Replace the use of virJSONValueObjectGetStringArray by fetching the array first and calling virJSONValueArrayToStringList only when we have an array. Fixes: 043b50b948ef3c2a4adf5fa32a93ec2589851ac6 Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2149752 Signed-off-by: Peter Krempa Reviewed-by: Michal Privoznik (cherry picked from commit 3b576601dfb924bb518870a01de5d1a421cbb467) https://bugzilla.redhat.com/show_bug.cgi?id=2152079 --- src/qemu/qemu_agent.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/src/qemu/qemu_agent.c b/src/qemu/qemu_agent.c index f33cd47078..8a55044c9e 100644 --- a/src/qemu/qemu_agent.c +++ b/src/qemu/qemu_agent.c @@ -2550,6 +2550,7 @@ int qemuAgentGetDisks(qemuAgent *agent, for (i = 0; i < ndata; i++) { virJSONValue *addr; virJSONValue *entry = virJSONValueArrayGet(data, i); + virJSONValue *dependencies; qemuAgentDiskInfo *disk; if (!entry) { @@ -2575,7 +2576,11 @@ int qemuAgentGetDisks(qemuAgent *agent, goto error; } - disk->dependencies = virJSONValueObjectGetStringArray(entry, "dependencies"); + if ((dependencies = virJSONValueObjectGetArray(entry, "dependencies"))) { + if (!(disk->dependencies = virJSONValueArrayToStringList(dependencies))) + goto error; + } + disk->alias = g_strdup(virJSONValueObjectGetString(entry, "alias")); addr = virJSONValueObjectGetObject(entry, "address"); if (addr) { -- 2.39.0