qcow2: Fix error handling for reading compressed clusters

[qemu.git] / block / qcow2-cluster.c

diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c
index 5fb8c6695ad4f8953689c955d5bd3e11b1404f4e..437aaa8174f8e5dc9357798d712b002f808f9547 100644 (file)
--- a/block/qcow2-cluster.c
+++ b/block/qcow2-cluster.c
@@ -878,11 +878,11 @@ int qcow2_decompress_cluster(BlockDriverState *bs, uint64_t cluster_offset)
         BLKDBG_EVENT(bs->file, BLKDBG_READ_COMPRESSED);
         ret = bdrv_read(bs->file, coffset >> 9, s->cluster_data, nb_csectors);
         if (ret < 0) {
-            return -1;
+            return ret;
         }
         if (decompress_buffer(s->cluster_cache, s->cluster_size,
                               s->cluster_data + sector_offset, csize) < 0) {
-            return -1;
+            return -EIO;
         }
         s->cluster_cache_offset = coffset;
     }