From 95d729835f3ceeed977eaf326a7ebb92788dee6d Mon Sep 17 00:00:00 2001
From: Jeff Cody <jcody@redhat.com>
Date: Mon, 7 Aug 2017 08:38:22 -0400
Subject: [PATCH] block/vhdx: check error return of bdrv_truncate()

Signed-off-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 block/vhdx-log.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/block/vhdx-log.c b/block/vhdx-log.c
index a27dc059cd..14b724ef7b 100644
--- a/block/vhdx-log.c
+++ b/block/vhdx-log.c
@@ -558,7 +558,11 @@ static int vhdx_log_flush(BlockDriverState *bs, BDRVVHDXState *s,
                     ret = -EINVAL;
                     goto exit;
                 }
-                bdrv_truncate(bs->file, new_file_size, PREALLOC_MODE_OFF, NULL);
+                ret = bdrv_truncate(bs->file, new_file_size, PREALLOC_MODE_OFF,
+                                    NULL);
+                if (ret < 0) {
+                    goto exit;
+                }
             }
         }
         qemu_vfree(desc_entries);