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Fix a possible SEGV in lvmetad client code, and a minor leak in pvscan

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--lvmetad.
This commit is contained in:
Petr Rockai 2012-02-26 13:42:50 +00:00
parent 6857e761cf
commit 7e9fbf5518
1 changed files with 5 additions and 2 deletions
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7
lib/cache/lvmetad.c vendored
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@ -566,9 +566,10 @@ static int _pvscan_lvmetad_single(struct metadata_area *mda, void *baton)
{
struct _pvscan_lvmetad_baton *b = baton;
struct volume_group *this = mda->ops->vg_read(b->fid, "", mda);
if ((this && !b->vg) || this->seqno > b->vg->seqno)
if (!b->vg || this->seqno > b->vg->seqno)
b->vg = this;
else release_vg(this);
else if (b->vg)
release_vg(this);
return 1;
}
@ -647,6 +648,8 @@ int pvscan_lvmetad(struct cmd_context *cmd, int argc, char **argv)
&fic);
lvmcache_foreach_mda(info, _pvscan_lvmetad_single, &baton);
if (!baton.vg)
lvmcache_fmt(info)->ops->destroy_instance(baton.fid);
/*
* NB. If this command failed and we are relying on lvmetad to have an