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Re: [Qemu-devel] [PATCH 1/8] qapi: fix NULL pointer dereference

From: Gerd Hoffmann
Subject: Re: [Qemu-devel] [PATCH 1/8] qapi: fix NULL pointer dereference
Date: Fri, 16 Dec 2011 17:24:10 +0100
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20111104 Red Hat/3.1.16-2.el6_1 Thunderbird/3.1.16


>> What are the uses of null in qdev string properties?  I know you can't
>> set a string to null since parse() doesn't have a null syntax.  So we're
>> really just talking about an uninitialized state, right?
> Yes.  No ROM BAR is an example of a NULL string property.

Both NULL and zero-length string are valid for "empty" though, so you
can use -device e1000,romfile=,mac=whatever to boot without pxe rom.

Which underlines anthonys point ;)


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