Re: [PATCH v2] qemu_tpm: Check for qemuTPMSetupEncryption() errors

Inside of qemuTPMEmulatorBuildCommand() there are two calls to qemuTPMSetupEncryption() which simply ignore returned error. This is suboptimal because then we rely on swtpm binary reporting a generic error (something among invalid command line arguments) while an error reported by qemuTPMSetupEncryption() is more specific. However, since virCommandSetSendBuffer() only sets an error inside of virCommand structure (the error is then reported in virCommandRun()), we need to exempt its retval from error checking. Thus, the signature of qemuTPMSetupEncryption() is changed a bit so that -1/0 can be returned to indicate error. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com&gt; --- v2 of: https://listman.redhat.com/archives/libvir-list/2022-November/235866.html diff to v1: - Ignore error from virCommandSetSendBuffer() as it'll be reported later. Don't actually jump onto error label as it would defeat the purpose. src/qemu/qemu_tpm.c | 29 ++++++++++++++++++++--------- 1 file changed, 20 insertions(+), 9 deletions(-)