From: Kevin Wolf <kwolf@redhat.com>
Date: Thu, 1 Sep 2011 13:00:42 +0000 (+0200)
Subject: qcow2: Properly initialise QcowL2Meta
X-Git-Tag: TizenStudio_2.0_p2.3~2346^2~29
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b4d1e4765e8083eb2f88bbcba77750fafc367344;p=sdk%2Femulator%2Fqemu.git

qcow2: Properly initialise QcowL2Meta

Dependency list pointers filled with random garbage from the stack aren't a
good idea.

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

diff --git a/block/qcow2.c b/block/qcow2.c
index b725d68..f26f7b6 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -526,13 +526,14 @@ static int qcow2_co_writev(BlockDriverState *bs,
     int n_end;
     int ret;
     int cur_nr_sectors; /* number of sectors in current iteration */
-    QCowL2Meta l2meta;
     uint64_t cluster_offset;
     QEMUIOVector hd_qiov;
     uint64_t bytes_done = 0;
     uint8_t *cluster_data = NULL;
+    QCowL2Meta l2meta = {
+        .nb_clusters = 0,
+    };
 
-    l2meta.nb_clusters = 0;
     qemu_co_queue_init(&l2meta.dependent_requests);
 
     qemu_iovec_init(&hd_qiov, qiov->niov);