[libvirt] [PATCH] qemuMonitorTextAttachDrive: avoid two leaks

[Jim Meyering]

Coverity reported the first leak: return-(-1)-would-leak-"safe_str".
I spotted the 2nd.

>From 6326ab7b52f3550f24015c27407c1d3c2a1fd64d Mon Sep 17 00:00:00 2001
From: Jim Meyering <meyering at redhat.com>
Date: Mon, 25 Jan 2010 20:19:01 +0100
Subject: [PATCH] qemuMonitorTextAttachDrive: avoid two leaks

* src/qemu/qemu_monitor_text.c (qemuMonitorTextAttachDrive): Most other
failures in this function would "goto cleanup", but one mistakenly
returned directly, skipping the cleanup and resulting in a leak.
In addition, iterating the "try_command" loop would clobber, and
thus leak, the "cmd" allocated on the first iteration,
so be careful to free it in addition to "reply" beforehand.
---
 src/qemu/qemu_monitor_text.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/qemu/qemu_monitor_text.c b/src/qemu/qemu_monitor_text.c
index ce5349b..380bcdc 100644
--- a/src/qemu/qemu_monitor_text.c
+++ b/src/qemu/qemu_monitor_text.c
@@ -1881,13 +1881,13 @@ try_command:
     if (qemudParseDriveAddReply(reply, driveAddr) < 0) {
         if (!tryOldSyntax && strstr(reply, "invalid char in expression")) {
             VIR_FREE(reply);
+            VIR_FREE(cmd);
             tryOldSyntax = 1;
             goto try_command;
         }
         qemudReportError (NULL, NULL, NULL, VIR_ERR_OPERATION_FAILED,
                           _("adding %s disk failed: %s"), drivestr, reply);
-        VIR_FREE(reply);
-        return -1;
+        goto cleanup;
     }

     ret = 0;
--
1.7.0.rc0.127.gab8271