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Fix segfault in persistent_filter_dump() if lvm init fails.

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Just return_0 in persistent_filter_dump() if passed a NULL filter;
This commit is contained in:
Dave Wysochanski 2009-07-08 18:13:32 +00:00
parent 71e41d9139
commit f882633886
1 changed files with 5 additions and 1 deletions
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6
lib/filters/filter-persistent.c
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@ -177,7 +177,7 @@ static void _write_array(struct pfilter *pf, FILE *fp, const char *path,
int persistent_filter_dump(struct dev_filter *f) int persistent_filter_dump(struct dev_filter *f)
{ {
struct pfilter *pf = (struct pfilter *) f->private; struct pfilter *pf;
char *tmp_file; char *tmp_file;
struct stat info, info2; struct stat info, info2;
struct config_tree *cft = NULL; struct config_tree *cft = NULL;
@ -185,6 +185,10 @@ int persistent_filter_dump(struct dev_filter *f)
int lockfd; int lockfd;
int r = 0; int r = 0;
if (!f)
return_0;
pf = (struct pfilter *) f->private;
if (!dm_hash_get_num_entries(pf->devices)) { if (!dm_hash_get_num_entries(pf->devices)) {
log_very_verbose("Internal persistent device cache empty " log_very_verbose("Internal persistent device cache empty "
"- not writing to %s", pf->file); "- not writing to %s", pf->file);