commit 585ea0c841df47c1542d33e17c5c6d532316ef74
author Fam Zheng <famz@redhat.com> Wed Jan 08 09:42:07 2014 +0800
committer Kevin Wolf <kwolf@redhat.com> Wed Jan 22 12:07:16 2014 +0100
tree 5294a965806379ab7d6f8099c078e7362cdde94f
parent 7fa9e1f941b4be1f71bb42de2f2ed8805d7e7326

vmdk: Fix big flat extent IO

Local variable "n" as int64_t avoids overflow with large sector number
calculation. See test case change for failure case.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

block/vmdk.c

diff --git a/block/vmdk.c b/block/vmdk.c
index c6b60b4..22b99b0 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -1325,8 +1325,8 @@
 {
     BDRVVmdkState *s = bs->opaque;
     VmdkExtent *extent = NULL;
-    int n, ret;
-    int64_t index_in_cluster;
+    int ret;
+    int64_t index_in_cluster, n;
     uint64_t extent_begin_sector, extent_relative_sector_num;
     uint64_t cluster_offset;
     VmdkMetaData m_data;