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-rw-r--r--block/vvfat.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/block/vvfat.c b/block/vvfat.c
index bb707c0008..aaa8593358 100644
--- a/block/vvfat.c
+++ b/block/vvfat.c
@@ -2462,10 +2462,13 @@ static int handle_commits(BDRVVVFATState* s)
fail = -2;
break;
case ACTION_WRITEOUT: {
+#ifndef NDEBUG
+ /* these variables are only used by assert() below */
direntry_t* entry = array_get(&(s->directory),
commit->param.writeout.dir_index);
uint32_t begin = begin_of_direntry(entry);
mapping_t* mapping = find_mapping_for_cluster(s, begin);
+#endif
assert(mapping);
assert(mapping->begin == begin);