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[PULL,16/40] vmdk: Switch to heap arrays for vmdk_read_cid

Message ID 1457977061-28087-17-git-send-email-kwolf@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Kevin Wolf March 14, 2016, 5:37 p.m. UTC 
From: Fam Zheng <famz@redhat.com>

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 block/vmdk.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
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Patch

diff --git a/block/vmdk.c b/block/vmdk.c
index 1ec2452..c68f456 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -242,15 +242,17 @@  static void vmdk_free_last_extent(BlockDriverState *bs)
 
 static uint32_t vmdk_read_cid(BlockDriverState *bs, int parent)
 {
-    char desc[DESC_SIZE];
+    char *desc;
     uint32_t cid = 0xffffffff;
     const char *p_name, *cid_str;
     size_t cid_str_size;
     BDRVVmdkState *s = bs->opaque;
     int ret;
 
+    desc = g_malloc0(DESC_SIZE);
     ret = bdrv_pread(bs->file->bs, s->desc_offset, desc, DESC_SIZE);
     if (ret < 0) {
+        g_free(desc);
         return 0;
     }
 
@@ -269,6 +271,7 @@  static uint32_t vmdk_read_cid(BlockDriverState *bs, int parent)
         sscanf(p_name, "%" SCNx32, &cid);
     }
 
+    g_free(desc);
     return cid;
 }