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-rw-r--r--block/qcow2-cluster.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c
index df0b2c9..1fea514 100644
--- a/block/qcow2-cluster.c
+++ b/block/qcow2-cluster.c
@@ -1263,7 +1263,7 @@ int qcow2_alloc_cluster_offset(BlockDriverState *bs, uint64_t offset,
again:
start = offset;
- remaining = *num << BDRV_SECTOR_BITS;
+ remaining = (uint64_t)*num << BDRV_SECTOR_BITS;
cluster_offset = 0;
*host_offset = 0;
cur_bytes = 0;