From: Kevin Wolf <kwolf@redhat.com>
Date: Fri, 11 May 2012 13:33:03 +0000 (+0200)
Subject: qcow2: Don't ignore failure to clear autoclear flags
X-Git-Tag: qemu-xen-4.3.0-rc1~1081^2~1
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=c44bfe4637424a8f1b411b72a465951f104c29ea;p=qemu-upstream-4.4-testing.git

qcow2: Don't ignore failure to clear autoclear flags

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

diff --git a/block/qcow2.c b/block/qcow2.c
index 3bae2d837..655799c6a 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -300,7 +300,10 @@ static int qcow2_open(BlockDriverState *bs, int flags)
 
     if (!bs->read_only && s->autoclear_features != 0) {
         s->autoclear_features = 0;
-        qcow2_update_header(bs);
+        ret = qcow2_update_header(bs);
+        if (ret < 0) {
+            goto fail;
+        }
     }
 
     /* Check support for various header values */