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-rw-r--r--block/qcow2-cluster.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c
index ffa89411d8..153ea508bc 100644
--- a/block/qcow2-cluster.c
+++ b/block/qcow2-cluster.c
@@ -188,7 +188,7 @@ static int l2_allocate(BlockDriverState *bs, int l1_index, uint64_t **table)
{
BDRVQcowState *s = bs->opaque;
uint64_t old_l2_offset;
- uint64_t *l2_table;
+ uint64_t *l2_table = NULL;
int64_t l2_offset;
int ret;
@@ -265,7 +265,9 @@ static int l2_allocate(BlockDriverState *bs, int l1_index, uint64_t **table)
fail:
trace_qcow2_l2_allocate_done(bs, l1_index, ret);
- qcow2_cache_put(bs, s->l2_table_cache, (void**) table);
+ if (l2_table != NULL) {
+ qcow2_cache_put(bs, s->l2_table_cache, (void**) table);
+ }
s->l1_table[l1_index] = old_l2_offset;
return ret;
}