File libvirt-qemu-fix-a-crash-when-save-file-can-t-be-opened.patch of Package libvirt

From 52706d71a74586b84da3d36ae6ce42891a3521f4 Mon Sep 17 00:00:00 2001
Message-Id: <52706d71a74586b84da3d36ae6ce42891a3521f4.1354720507.git.jdenemar@redhat.com>
From: =?UTF-8?q?J=C3=A1n=20Tomko?= <jtomko@redhat.com>
Date: Wed, 28 Nov 2012 10:41:22 +0100
Subject: [PATCH] qemu: fix a crash when save file can't be opened

In qemuDomainSaveMemory, wrapperFd might be NULL and should be checked before
calling virFileWrapperFdCatchError. Same in doCoreDump.

Bug: https://bugzilla.redhat.com/show_bug.cgi?id=880919
(cherry picked from commit 8927c0eab6681ee4ae014cb37fe60b42c225b8df)
---
 src/qemu/qemu_driver.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 225e89c..f57d013 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -2883,7 +2883,8 @@ qemuDomainSaveMemory(struct qemud_driver *driver,
 
 cleanup:
     VIR_FORCE_CLOSE(fd);
-    virFileWrapperFdCatchError(wrapperFd);
+    if (wrapperFd)
+        virFileWrapperFdCatchError(wrapperFd);
     virFileWrapperFdFree(wrapperFd);
     VIR_FREE(xml);
 
@@ -3339,7 +3340,8 @@ doCoreDump(struct qemud_driver *driver,
 cleanup:
     VIR_FORCE_CLOSE(fd);
     if (ret != 0) {
-        virFileWrapperFdCatchError(wrapperFd);
+        if (wrapperFd)
+            virFileWrapperFdCatchError(wrapperFd);
         unlink(path);
     }
     virFileWrapperFdFree(wrapperFd);
-- 
1.8.0