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qemu_hotplug: Initialize @charAlias in qemuDomainRemoveChrDevice

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My change in 112f3a8d0f was too drastic. The @charAlias
variable is initialized only if @monitor == true. However, it is
used even outside of that condition, at which point it's just
uninitialized pointer.

Reported-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
This commit is contained in:
Michal Privoznik 2019-02-14 14:13:08 +01:00
parent 4c4ff7a1a0
commit 4b23f18d2c
1 changed files with 3 additions and 4 deletions
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7
src/qemu/qemu_hotplug.c
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@ -4754,13 +4754,12 @@ qemuDomainRemoveChrDevice(virQEMUDriverPtr driver,
VIR_DEBUG("Removing character device %s from domain %p %s",
chr->info.alias, vm, vm->def->name);
if (monitor) {
if (!(charAlias = qemuAliasChardevFromDevAlias(chr->info.alias)))
goto cleanup;
if (!(charAlias = qemuAliasChardevFromDevAlias(chr->info.alias)))
goto cleanup;
if (monitor) {
qemuDomainObjEnterMonitor(driver, vm);
rc = qemuMonitorDetachCharDev(priv->mon, charAlias);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
goto cleanup;
}