Here's the patch (entire function below): From: Jim Meyering <meyering(a)redhat.com&gt; Date: Tue, 16 Feb 2010 08:22:34 +0100 Subject: [PATCH] qemuMonitorTextAddDevice: avoid unconditional leak * src/qemu/qemu_monitor_text.c (qemuMonitorTextAddDevice): Free the device name buffer. --- src/qemu/qemu_monitor_text.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/src/qemu/qemu_monitor_text.c b/src/qemu/qemu_monitor_text.c index e993699..c71bf1d 100644 --- a/src/qemu/qemu_monitor_text.c +++ b/src/qemu/qemu_monitor_text.c @@ -2087,6 +2087,7 @@ int qemuMonitorTextAddDevice(qemuMonitorPtr mon, cleanup: VIR_FREE(cmd); VIR_FREE(reply); + VIR_FREE(safedev); return ret; } -- 1.7.0.181.g41533 For reference, here's the entire function: int qemuMonitorTextAddDevice(qemuMonitorPtr mon, const char *devicestr) { char *cmd = NULL; char *reply = NULL; char *safedev; int ret = -1; if (!(safedev = qemuMonitorEscapeArg(devicestr))) { virReportOOMError(); goto cleanup; } if (virAsprintf(&cmd, "device_add %s", safedev) < 0) { virReportOOMError(); goto cleanup; } if (qemuMonitorCommand(mon, cmd, &reply) < 0) { qemuReportError(VIR_ERR_OPERATION_FAILED, _("cannot attach %s device"), devicestr); goto cleanup; } if (STRNEQ(reply, "")) { qemuReportError(VIR_ERR_OPERATION_FAILED, _("adding %s device failed: %s"), devicestr, reply); goto cleanup; } ret = 0; cleanup: VIR_FREE(cmd); VIR_FREE(reply); VIR_FREE(safedev); return ret; }