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Don't deref uninitialized log_lv upon failed mirror addition.

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* mirror.c (add_mirror_images): Ensure that log_lv is initialized.
This commit is contained in:
Jim Meyering 2008-06-13 12:15:55 +00:00
parent f5adaf813c
commit 987ff02a45
2 changed files with 7 additions and 5 deletions
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3
WHATS_NEW
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@ -1,10 +1,11 @@
Version 2.02.39 -
================================
Fix add_mirror_images not to dereference uninitialized log_lv upon failure.
Don't call openlog for every debug line output by clvmd.
Add --force to lvextend and lvresize.
Fix vgchange to not activate mirror leg and log volumes directly.
Fix test directory clean up in make distclean.
Version 2.02.38 - 11th June 2008
================================
Fix tracking of validity of PVs with no mdas in lvmcache.

9
lib/metadata/mirror.c
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@ -1,6 +1,6 @@
/*
* Copyright (C) 2003-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
* Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
*
* This file is part of LVM2.
*
@ -1344,7 +1344,8 @@ int add_mirror_images(struct cmd_context *cmd, struct logical_volume *lv,
struct alloc_handle *ah;
const struct segment_type *segtype;
struct list *parallel_areas;
struct logical_volume **img_lvs, *log_lv;
struct logical_volume **img_lvs;
struct logical_volume *log_lv = NULL;
if (stripes > 1) {
log_error("stripes > 1 is not supported");
@ -1416,8 +1417,8 @@ int add_mirror_images(struct cmd_context *cmd, struct logical_volume *lv,
return 1;
out_remove_log:
if (!lv_remove(log_lv) || !vg_write(log_lv->vg) ||
(backup(log_lv->vg), !vg_commit(log_lv->vg)))
if (log_lv && (!lv_remove(log_lv) || !vg_write(log_lv->vg) ||
(backup(log_lv->vg), !vg_commit(log_lv->vg))))
log_error("Manual intervention may be required to remove "
"abandoned log LV before retrying.");