From: Scott Wood <scottwood@freescale.com>
Date: Thu, 11 Aug 2011 21:27:15 +0000 (-0500)
Subject: qcow: initialize coroutine mutex
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=de33b1f3ddef8d6b4d53dbd4ae049262de2d3f02;p=qemu.git

qcow: initialize coroutine mutex

commit 52b8eb60132b27ad53476490e9d7579003390cfa added a mutex,
but never initialized it.  This caused a segfault.

Reported-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---

diff --git a/block/qcow.c b/block/qcow.c
index e155d3c002..8f2bdfda51 100644
--- a/block/qcow.c
+++ b/block/qcow.c
@@ -159,6 +159,8 @@ static int qcow_open(BlockDriverState *bs, int flags)
             goto fail;
         bs->backing_file[len] = '\0';
     }
+
+    qemu_co_mutex_init(&s->lock);
     return 0;
 
  fail: