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-rw-r--r--block/qcow2-refcount.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c
index 6151148507..3f2ed08466 100644
--- a/block/qcow2-refcount.c
+++ b/block/qcow2-refcount.c
@@ -1383,7 +1383,7 @@ static int write_reftable_entry(BlockDriverState *bs, int rt_index)
* does _not_ decrement the reference count for the currently occupied cluster.
*
* This function prints an informative message to stderr on error (and returns
- * -errno); on success, 0 is returned.
+ * -errno); on success, the offset of the newly allocated cluster is returned.
*/
static int64_t realloc_refcount_block(BlockDriverState *bs, int reftable_index,
uint64_t offset)