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-rw-r--r--block/qcow2-refcount.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c
index 0aac2edee1..609eee1891 100644
--- a/block/qcow2-refcount.c
+++ b/block/qcow2-refcount.c
@@ -192,7 +192,8 @@ static int64_t alloc_refcount_block(BlockDriverState *bs, int64_t cluster_index)
{
BDRVQcowState *s = bs->opaque;
int64_t offset, refcount_block_offset;
- int ret, refcount_table_index;
+ unsigned int refcount_table_index;
+ int ret;
uint64_t data64;
int cache = cache_refcount_updates;