[Qemu-devel] [PATCH] qcow: initialize coroutine mutex

[Scott Wood]

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

Reported-by: Alexander Graf <address@hidden>
Signed-off-by: Scott Wood <address@hidden>
---
 block/qcow.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/block/qcow.c b/block/qcow.c
index 6447c2a..e46f15f 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:
-- 
1.7.6