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Date: Tue, 17 Nov 2020 12:14:47 +0000
From: "Mark Brown" <broonie@kernel.org>
To: tools@linux.kernel.org, konstantin@linuxfoundation.org
Subject: Exception with b4 am -3
Message-ID: <20201117121447.GA5142@sirena.org.uk>
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When running

   b4 am -t -g -3 20201116040721.8001-1-rdunlap@infradead.org

I get:

Looking up https://lore.kernel.org/r/20201116040721.8001-1-rdunlap%40infradead.org
Grabbing thread from lore.kernel.org/linux-spi
Analyzing 2 messages in the thread
---
Writing /home/broonie/queue/spi/next/20201115_rdunlap_spi_dw_fix_build_error_by_selecting_multiplexer.mbx
  [PATCH] spi: dw: fix build error by selecting MULTIPLEXER
    + Acked-by: Serge Semin <fancer.lancer@gmail.com>
---
Total patches: 1
Preparing fake-am for v1: spi: dw: fix build error by selecting MULTIPLEXER
Traceback (most recent call last):
  File "/home/broonie/git/b4/b4/command.py", line 238, in <module>
    cmd()
  File "/home/broonie/git/b4/b4/command.py", line 221, in cmd
    cmdargs.func(cmdargs)
  File "/home/broonie/git/b4/b4/command.py", line 40, in cmd_am
    b4.mbox.main(cmdargs)
  File "/home/broonie/git/b4/b4/mbox.py", line 511, in main
    mbox_to_am(threadmbox, cmdargs)
  File "/home/broonie/git/b4/b4/mbox.py", line 155, in mbox_to_am
    rstart, rend = lser.make_fake_am_range(gitdir=None)
  File "/home/broonie/git/b4/b4/__init__.py", line 681, in make_fake_am_range
    if not len(lmsg.blob_indexes):
TypeError: object of type 'NoneType' has no len()

Omitting the -3 causes things to run successfully.

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