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Re: [Qemu-devel] [PATCH] Permit zero-sized qemu_malloc() & friends

From: Kevin Wolf
Subject: Re: [Qemu-devel] [PATCH] Permit zero-sized qemu_malloc() & friends
Date: Mon, 30 Nov 2009 15:23:10 +0100
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20091014 Fedora/3.0-2.8.b4.fc11 Thunderbird/3.0b4

Am 30.11.2009 14:55, schrieb Markus Armbruster:
> Commit a7d27b53 made zero-sized allocations a fatal error, deviating
> from ISO C's malloc() & friends.  Revert that, but take care never to
> return a null pointer, like malloc() & friends may do (it's
> implementation defined), because that's another source of bugs.
> [...]
> Based on this sample, I'm confident there are many more uses broken by
> the change.
> Signed-off-by: Markus Armbruster <address@hidden>

Acked-by: Kevin Wolf <address@hidden>

We really should fix the root cause once and for all instead of working
around unexpected qemu_malloc behaviour each time when one of the time
bombs has blown up another (possibly production) VM.

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