integrity: fix segfault for lv with no seg

in lv_raid_has_integrity

diff --git a/lib/metadata/integrity_manip.c b/lib/metadata/integrity_manip.c
index 6b2d352a7e260af73a6b7c53b811a56965fa5e6d..5854a2a5206c2af6e309543b61723b1b4f961be0 100644 (file)
--- a/lib/metadata/integrity_manip.c
+++ b/lib/metadata/integrity_manip.c
@@ -847,7 +847,8 @@ int lv_raid_has_integrity(struct logical_volume *lv)
        struct lv_segment *seg, *seg_image;
        uint32_t s;
 
-       seg = first_seg(lv);
+       if (!(seg = first_seg(lv)))
+               return 0;
 
        if (seg_is_raid(seg)) {
                for (s = 0; s < seg->area_count; s++) {