master - libdm: clear region table in dm_stats_list()

[Bryn Reeves]

Gitweb:        http://git.fedorahosted.org/git/?p=lvm2.git;a=commitdiff;h=009b711834d26610d...
Commit:        009b711834d26610d23d14bd8b7540eb69c836a7
Parent:        8d6ac1c3ba2ee72e9832383609b6ff030d9883ce
Author:        Bryn M. Reeves 
AuthorDate:    Thu Dec 15 19:03:42 2016 +0000
Committer:     Bryn M. Reeves 
CommitterDate: Sun Dec 18 20:44:31 2016 +0000

libdm: clear region table in dm_stats_list()

Call _stats_regions_destroy() from dm_stats_list() if dms->regions
is non-NULL. This avoids leaking any pool allocations and ensures
the handle is in a known state: if an error occurs during the list,
dms->regions will be NULL and the handle will appear empty.
---
 libdm/libdm-stats.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/libdm/libdm-stats.c b/libdm/libdm-stats.c
index 8d202d2..3978244 100644
--- a/libdm/libdm-stats.c
+++ b/libdm/libdm-stats.c
@@ -1083,6 +1083,9 @@ int dm_stats_list(struct dm_stats *dms, const char *program_id)
    if (!_stats_set_name_cache(dms))
    	return_0;

+	if (dms->regions)
+		_stats_regions_destroy(dms);
+
    r = dm_snprintf(msg, sizeof(msg), "@stats_list %s", program_id);

if (r < 0) {