[qemu-xen staging] Merge remote-tracking branch 'remotes/philmd-gitlab/tags/fw_cfg-20200721' into staging

[patchbot@xxxxxxx]

commit d0cc248164961a7ba9d43806feffd76f9f6d7f41
Merge: 3cbc8970f55c87cb58699b6dc8fe42998bc79dc0 
077195187b47d83418e5fb521c89d7881fab3049
Author:     Peter Maydell <peter.maydell@xxxxxxxxxx>
AuthorDate: Wed Jul 22 12:42:25 2020 +0100
Commit:     Peter Maydell <peter.maydell@xxxxxxxxxx>
CommitDate: Wed Jul 22 12:42:25 2020 +0100

    Merge remote-tracking branch 'remotes/philmd-gitlab/tags/fw_cfg-20200721' 
into staging
    
    fw_cfg patches
    
    Fixes the DEADCODE issue reported by Coverity (CID 1430396).
    
    CI jobs result:
    . https://gitlab.com/philmd/qemu/-/pipelines/169086301
    
    # gpg: Signature made Tue 21 Jul 2020 18:52:46 BST
    # gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
    # gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) 
<f4bug@xxxxxxxxx>" [full]
    # Primary key fingerprint: FAAB E75E 1291 7221 DCFD  6BB2 E3E3 2C2C DEAD 
C0DE
    
    * remotes/philmd-gitlab/tags/fw_cfg-20200721:
      hw/nvram/fw_cfg: Let fw_cfg_add_from_generator() return boolean value
      hw/nvram/fw_cfg: Simplify fw_cfg_add_from_generator() error propagation
    
    Signed-off-by: Peter Maydell <peter.maydell@xxxxxxxxxx>

 hw/nvram/fw_cfg.c         | 13 +++++++------
 include/hw/nvram/fw_cfg.h |  8 ++++++--
 softmmu/vl.c              |  6 +-----
 3 files changed, 14 insertions(+), 13 deletions(-)
--
generated by git-patchbot for /home/xen/git/qemu-xen.git#staging