Merge remote-tracking branch 'remotes/ericb/tags/pull-nbd-2019-02-11' into staging

nbd patches for 2019-02-11

- Add qcow2 bitmap details to 'qemu-img info'

# gpg: Signature made Mon 11 Feb 2019 20:38:32 GMT
# gpg:                using RSA key A7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>" [full]
# gpg:                 aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>" [full]
# gpg:                 aka "[jpeg image of size 6874]" [full]
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2  F3AA A7A1 6B4A 2527 436A

* remotes/ericb/tags/pull-nbd-2019-02-11:
  qcow2: list of bitmaps new test 242
  qcow2: Add list of bitmaps to ImageInfoSpecificQCow2
  bdrv_query_image_info Error parameter added
  nbd/server: Kill pointless shadowed variable

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 6 insertions, 1 deletions

diff --git a/qemu-io-cmds.c b/qemu-io-cmds.c
index ee8f56e46a..b9f189f09b 100644
--- a/qemu-io-cmds.c
+++ b/qemu-io-cmds.c
@@ -1661,6 +1661,7 @@ static int info_f(BlockBackend *blk, int argc, char **argv)
     BlockDriverState *bs = blk_bs(blk);
     BlockDriverInfo bdi;
     ImageInfoSpecific *spec_info;
+    Error *local_err = NULL;
     char s1[64], s2[64];
     int ret;
 
@@ -1682,7 +1683,11 @@ static int info_f(BlockBackend *blk, int argc, char **argv)
     printf("cluster size: %s\n", s1);
     printf("vm state offset: %s\n", s2);
 
-    spec_info = bdrv_get_specific_info(bs);
+    spec_info = bdrv_get_specific_info(bs, &local_err);
+    if (local_err) {
+        error_report_err(local_err);
+        return -EIO;
+    }
     if (spec_info) {
         printf("Format specific information:\n");
         bdrv_image_info_specific_dump(fprintf, stdout, spec_info);