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Re: [Qemu-devel] [PATCH 02/12] omap: Don't use hw_error() in device init


From: Markus Armbruster
Subject: Re: [Qemu-devel] [PATCH 02/12] omap: Don't use hw_error() in device init() methods
Date: Thu, 10 Dec 2015 13:44:53 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux)

Peter Maydell <address@hidden> writes:

> On 10 December 2015 at 10:29, Markus Armbruster <address@hidden> wrote:
>> Device init() methods aren't supposed to call hw_error(), they should
>> report the error and fail cleanly.  Do that.
>>
>> Cc: Peter Maydell <address@hidden>
>> Signed-off-by: Markus Armbruster <address@hidden>
>
> These are all really "QEMU bug" error paths -- the only place
> that uses omap_i2c is the omap SoC init, you can't create the
> device on the command line, and so we'll only get these errors
> if there's a bug in a function like omap2420_mpu_init. But
> I don't object to the patch in principle.

All callers use qdev_init_nofail(), so this patch merely converts the
hw_error() crash into an &error_abort crash.  Improvement, because now
it crashes closer to where the bug is.  I can spell that out in the
commit message if you like.

> Reviewed-by: Peter Maydell <address@hidden>

Thanks!



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