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Reset vg pointer after release

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Set vg to NULL after releasing it as the following memlock() test may
lead to goto for the second call of vg_release() with the already
released vg pointer.
This commit is contained in:
Zdenek Kabelac 2010-11-29 11:08:14 +00:00
parent 1b88184104
commit 201222ebad
2 changed files with 2 additions and 0 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.78 -
====================================
Fix missing reset of vg pointer after vg_release() in _vg_read_by_vgid().
Fix test for empty system_dir string in _init_backup().
Certain lvconvert invocations are now required to be done in two steps.
Fix missing context desctruction in err path of lvm1 fallback in lvm2_main().

1
lib/metadata/metadata.c
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@ -3117,6 +3117,7 @@ static struct volume_group *_vg_read_by_vgid(struct cmd_context *cmd,
return vg;
}
vg_release(vg);
vg = NULL; /* reset so memlock goto out is safe */
}
/* Mustn't scan if memory locked: ensure cache gets pre-populated! */