[lvm-devel] [PATCH 13/18] Replicator: no crash lvresize if area_count is 0

[Zdenek Kabelac]

Currently with replicator-dev LV we get area_count=0 for lvresize request.
The original reason needs to be exploread, meanwhile avoid crash,
but stopping processing if count is 0.

Signed-off-by: Zdenek Kabelac <zkabelac at redhat.com>
---
 lib/metadata/lv_manip.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/lib/metadata/lv_manip.c b/lib/metadata/lv_manip.c
index abd3a8c..b3800cc 100644
--- a/lib/metadata/lv_manip.c
+++ b/lib/metadata/lv_manip.c
@@ -1367,6 +1367,11 @@ int lv_add_segment(struct alloc_handle *ah,
 		return 0;
 	}
 
+	if (!ah->area_count) {
+		log_error("Allocated areas are empty.");
+		return 0;
+	}
+
 	if (!_setup_alloced_segments(lv, &ah->alloced_areas[first_area],
 				     num_areas, status,
 				     stripe_size, segtype,
-- 
1.6.6