master - lvmcache: check for lvmcache_foreach_mda return code

[Zdenek Kabelac]

Gitweb:        https://sourceware.org/git/?p=lvm2.git;a=commitdiff;h=c1e3f96c9764b242898914...
Commit:        c1e3f96c9764b242898914c282fb273803ba89ae
Parent:        d4ce98de4d6c7c3ddeca0e380a18bbdc102e6c3a
Author:        Zdenek Kabelac 
AuthorDate:    Wed Aug 16 14:29:12 2017 +0200
Committer:     Zdenek Kabelac 
CommitterDate: Tue Aug 22 10:23:31 2017 +0200

lvmcache: check for lvmcache_foreach_mda return code

lvmcache_foreach_mda() can fail for numerous reasons
and failing error code cannot be ignored (out-of-memory...)

TODO: might need more error handling tunning.
---
 lib/format_text/text_label.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/lib/format_text/text_label.c b/lib/format_text/text_label.c
index 6edfae7..ad323b6 100644
--- a/lib/format_text/text_label.c
+++ b/lib/format_text/text_label.c
@@ -437,7 +437,9 @@ out:
    baton.info = info;
    baton.label = *label;

-	lvmcache_foreach_mda(info, _update_mda, &baton);
+	if (!lvmcache_foreach_mda(info, _update_mda, &baton))
+		return_0;
+
    lvmcache_make_valid(info);

return 1;